Life on Earth

Taxonomy

Taxonomy is the classification of living and extinct organisms. The term is derived from the Greek taxis (“arrangement”) and nomos (“law”) and refers to the methodology and principles of systematic botany and zoology by which the various kinds of plants and animals are arranged in hierarchies of superior and subordinate groups.

Popularly, classifications of living organisms arise according to need and are often superficial; for example, although the term fish is common to the names shellfish, crayfish, and starfish, there are more anatomical differences between a shellfish and a starfish than there are between a bony fish and a human. Also, vernacular names vary widely. Biologists have attempted to view all living organisms with equal thoroughness and thus have devised a formal classification. A formal classification supports a relatively uniform and internationally understood nomenclature, thereby simplifying cross-referencing and retrieval of information.

Carolus Linnaeus, who is usually regarded as the founder of modern taxonomy and whose books are considered the beginning of modern botanical and zoological nomenclature, drew up rules for assigning names to plants and animals and was the first to use binomial nomenclature consistently, beginning in 1758. Classification since Linnaeus has incorporated newly discovered information and more closely approaches a natural system, and the process of clarifying relationships continues to this day. The table below shows the seven ranks that are accepted as obligatory by zoologists and botanists and sample listings for animals and plants.


 

ANIMALS

PLANTS

Kingdom

Animalia

Plantae

Phylum/Division

Chordata

Tracheophyta

Class

Mammalia

Pteropsida

Order

Primates

Coniferales

Family

Hominidae

Pinaceae

Genus

Homo

Pinus

Species

Homo sapiens (human)

Pinus strobus (white pine)

Period of Gestation and Longevity of Selected Mammals

 

AVERAGE

AVERAGE

 

AVERAGE

AVERAGE

 

GESTATION

LONGEVITY

 

GESTATION

LONGEVITY

ANIMAL

(DAYS)

(YEARS)

ANIMAL

(DAYS)

(YEARS)

bear (black)

219

18

horse

330

20

bear (grizzly)

225

25

human (worldwide)

266-70

Men: 64.7;

bear (polar)

240

20

\

 

Women: 68.9

cat (domestic)

63

12

monkey (rhesus)

164

15

dog (domestic)

61

12

mouse (domestic white)

19

3

elephant (Asian)

645

40

pig (domestic)

112

10

fox (red)

52

7

rabbit (domestic)

31

5

guinea pig

68

4

sheep (domestic)

154

12

hippopotamus

238

25-30

squirrel (gray)

44

9-10

Names of the Male, Female, Young, and Group of Animals

ANIMAL

MALE

FEMALE

YOUNG

GROUP

ape

male

female

baby

shrewdness

bear

boar

sow

cub

sleuth, sloth

camel

bull

cow

calf

flock

cattle

bull

cow

calf

drift, drove, herd, mob

chicken

rooster

hen

chick, pullet (hen),

flock, brood (hens), clutch & peep

 

 

 

cockrell (rooster)

(chicks)

deer

buck, stag

doe

fawn

herd

donkey

jack, jackass

jennet, jenny

colt, foal

drove, herd

elephant

bull

cow

calf

herd, parade

ferret

hob

jill

kit

business, fesynes

fox

reynard

vixen

kit, cub, pup

skulk, leash

giraffe

bull

doe

calf

herd, corps, tower, group

goat

buck, billy

doe, nanny

kid, billy

herd, tribe, trip

gorilla

male

female

infant

band

 

Names of the Male, Female, Young, and Group of Animals

ANIMAL

MALE

FEMALE

YOUNG

GROUP

hamster

buck

doe

pup

horde

hippopotamus

bull

cow

calf

herd, bloat

horse

stallion, stud

mare, dam

foal, colt (male),

stable, harras, herd, team (working)

 

 

 

filly (female)

string or field (racing)

human

man

woman

baby, infant, toddler

clan (related), crowd, family (closely

 

 

 

 

related), community, gang, mob,

 

 

 

 

tribe, etc.

lion

lion

lioness

cub

pride

louse

male

female

nymph

lice, colony, infestation

mouse

buck

doe

pup, pinkie, kitten

horde, mischief

ostrich

cock

hen

chick

flock

pig

boar

sow

piglet, shoat, farrow

drove, herd, litter (of pups), sounder

quail

cock

hen

chick

bevy, covey, drift

rhinoceros

bull

cow

calf

crash

seal

bull

cow

pup

herd, pod, rookery, harem

sheep

buck, ram

ewe, dam

lamb, lambkin, cosset

drift, drove, flock, herd, mob, trip

turkey

tom

hen

poult

rafter

turtle

male

female

hatchling

bale

whale

bull

cow

calf

gam, grind, herd, pod, school

wolf

dog

bitch

pup, whelp

pack, rout

zebra

stallion

mare

colt, foal

herd, crossing

Plants

Oldest Trees and Flowering Plants in the World

 

MAXIMUM Al ESTIMATED

GE IN YEARS

VERIFIED

LOCATION

trees

 

 

 

Bristlecone pine

 

4,900

Wheeler Peak, Humboldt National Forest, Nevada

Sierra redwood

4,000

2,200-2,300

northern California

Swiss stone pine

1,200

750

Riffel Alp, Switzerland

common juniper

2,000

544

Kola Peninsula, northeastern Russia

European larch

700

417

Riffel Alp, Switzerland

Norway spruce

1,200

350-400

Eichstatt, Bavaria, Germany

flowering plants

 

 

 

bo tree

2,000-3,000

 

Bodh Gaya, India; Anuradhapura, Sri Lanka

English oak

2,000

1,500

Hasbruch Forest, Lower Saxony, Germany

linden

 

815

Lithuania

European beech

900

250

Montigny, Normandy, France

English ivy

440

 

Ginac, near Montpellier, France

dragon tree

200

 

Tenerife, Canary Islands

dwarf birch

 

80

eastern Greenland

Forests of the World

This table shows the 25 countries or dependencies that lost the most forest area between 1990 and 2005 and those that gained the most, as well as forest losses or gains by continent. 1 hectare (ha) = x .01 sq km, .004 sq mi. Source: State of the World’s Forests 2007.

 

 

 

 

PERCENTAGE

 

 

LAND AREA

TOTAL FOREST IN

TOTAL FOREST IN

OF LAND AREA

% CHANGE

COUNTRY/AREA

(’000 HA)

1990 (’000 HA)

2005 (’000 HA)

IN 2005 (%)

1990-2005

Kiribati

73

28

2

2.7

-92.86

Kazakhstan

269,970

9,758

3,337

1.2

-65.80

Comoros

186

12

5

2.7

-58.33

Togo

5,439

719

386

7.1

-46.31

Lesotho

3,035

14

8

0.3

-42.86

The Bahamas

1,001

842

515

51.5

-38.84

Brunei

527

452

278

52.8

-38.50

Mozambique

78,409

31,238

19,262

24.6

-38.34

Burundi

2,568

241

152

5.9

-36.93

Nigeria

91,077

17,501

11,089

12.2

-36.64

Afghanistan

65,209

1,351

867

1.3

-35.83

Forests of the World

 

 

 

 

PERCENTAGE

 

 

LAND AREA

TOTAL FOREST IN

TOTAL FOREST IN

OF LAND AREA

% CHANGE

COUNTRY/AREA

(’000 HA)

1990 (’000 HA)

2005 (’000 HA)

IN 2005 (%)

1990-2005

Mauritania

102,522

415

267

0.3

-35.66

Niger

126,670

1,945

1,266

1.0

-34.91

Haiti

2,756

158

105

3.8

-33.54

Pakistan

77,088

2,755

1,902

2.5

-30.96

Libya

175,954

311

217

0.1

-30.23

Benin

11,062

3,349

2,351

21.3

-29.80

Uganda

19,710

5,103

3,627

18.4

-28.92

Ghana

22,754

7,535

5,517

24.2

-26.78

Albania

2,740

1,069

794

29.0

-25.72

Liberia

9,632

4,241

3,154

32.7

-25.63

Bangladesh

13,017

1,169

871

6.7

-25.49

Indonesia

181,157

118,110

88,495

48.8

-25.07

Paraguay

39,730

24,602

18,475

46.5

-24.90

Dem. People’s Rep. of Korea

12,041

8,210

6,187

51.4

-24.64

Lebanon

1,023

37

136

13.3

267.57

Micronesia

70

24

63

90.6

162.50

Ethiopia

100,000

4,996

13,000

13.0

160.21

Cape Verde

403

35

84

20.8

140.00

Northern Mariana Islands

46

14

33

72.4

135.71

Mauritius

203

17

37

18.2

117.65

Tunisia

15,536

499

1,056

6.8

111.62

Kuwait

1,782

3

6

0.3

100.00

Oman

30,950

1

2

1

100.00

Sierra Leone

7,162

1,416

2,754

38.5

94.49

Uruguay

17,502

791

1,506

8.6

90.39

Iceland

10,025

25

46

0.5

84.00

Saudi Arabia

214,969

1,504

2,728

1.3

81.38

Puerto Rico

887

234

408

46.0

74.36

Uzbekistan

41,424

1,923

3,295

8.0

71.35

St. Vincent and the Grenadines 39

7

11

28.2

57.14

El Salvador

2,072

193

298

14.4

54.40

Iran

163,620

7,299

11,075

6.8

51.73

East Timor

1,487

541

798

53.7

47.50

Cyprus

924

119

174

18.9

46.22

Morocco

44,630

3,037

4,364

9.8

43.69

Vietnam

32,549

9,303

12,931

39.7

39.00

Ireland

6,889

489

669

9.7

36.81

United States of America

915,896

222,113

303,089

33.1

36.46

China

932,742

145,417

197,290

21.2

35.67

South America

1,753,646

922,731

831,540

47.4

-9.88

Africa

2,962,656

702,502

635,412

21.4

-9.55

Europe

2,260,180

1,030,475

1,001,394

44.3

-2.82

North and Central America

2,143,910

555,002

705,849

32.9

27.18

Asia

3,097,913

551,448

571,577

18.5

3.65

Oceania

849,116

201,271

206,254

24.3

2.48

World

13,067,421

3,963,429

3,952,025

30.2

-0.29

In 17th-century Holland a speculative frenzy erupted over the sale of tulip bulbs. Tulips had been introduced into Europe from Turkey shortly after 1550. Demand for new varieties soon exceeded the supply, and prices rose to astonishing heights. The craze, known as the tulip mania, reached its peak in Holland in 1633-37. Homes, estates, and industries were mortgaged so that bulbs could be purchased; bulbs of rare varieties sold for the equivalent of hundreds of dollars each. The crash came in 1637, when almost overnight the price structure collapsed, sweeping away fortunes and leaving behind financial ruin for many Dutch families.

Geology

The Continents

Figures given are approximate. Area and population as of 2007. Highest and lowest points listed are all given in relation to sea level.

 

% OF TOTAL

 

CONTINENT

POPULATION

AREA

LAND AREA1

HIGHEST/LOWEST POINT

Africa

939,166,800

30,246,121 sq km 11,678,182 sq mi

20.2

Mt. Kilimanjaro (Tanzania): 5,895 m (19,340 ft) Lake Assal (Djibouti): -157 m (-515 ft)

Antarctica

N/A

14,200,000 sq km 5,500,000 sq mi

9.5

Vinson Massif: 4,892 m (16,050 ft) BentleySubglacial Trench: -2,500 m (-8,200 ft)

Asia

3,976,028,000

31,699,257 sq km 12,239,181 sq mi

21.1

Mt. Everest (China/Nepal):

8,850 m (29,035 ft) Dead Sea (Israel/Jordan): -400 m (-1,312 ft)

Europe

732,578,400

23,039,279 sq km 8,895,468 sq mi

15.4

Mt. Elbrus (Russia):

5,642 m (18,510 ft) Caspian Sea (Russia): -27 m (-90 ft)

North America

523,775,400

24,393,585 sq km 9,418,416 sq mi

16.3

Mt. McKinley (Alaska): 6,194 m (20,320 ft) Death Valley (California): -86 m (-282 ft)

Australia (and Oceania) 34,375,070

8,515,144 sq km 3,287,717 sq mi

5.7

Jaya Peak (Indonesia): 5,030 m (16,500 ft) Lake Eyre (Australia): -15 m (-50 ft)

South America

376,055,500

17,824,370 sq km 6,882,027 sq mi

11.9

Mt. Aconcagua (Argentina/Chile):

6,959 m (22,834 ft) Valdes Peninsula (Argentina): -40 m (-131 ft)

tmp3A-30_thumbtmp3A-31_thumb

Wall Street, which was recognized even before the Civil War as the financial capital of the US, is narrow and short, extending only about seven blocks across part of southern Manhattan in New York City. It was named for an earthen wall built by Dutch settlers in 1653 to repel an expected English invasion.

tmp3A-32_thumb

 

 

 

AREA1

NAME AND LOCATION

CONTINENT

SQ MI

SQ KM

Greenland

North America

822,700

2,130,800

New Guinea, Papua New Guinea/Indonesia

Australia (and Oceania)

309,000

800,000

Borneo, Indonesia/Malaysia/Brunei

Asia

292,000

755,000

Madagascar

Africa

226,662

587,051

Baffin, Nunavut, Canada

North America

195,928

507,451

Sumatra, Indonesia

Asia

186,253

482,393

Great Britain, UK

Europe

88,386

228,919

Honshu,Japan

Asia

87,992

227,898

Victoria, Northwest Territories/Nunavut, Canada

North America

83,896

217,291

Ellesmere, Nunavut, Canada

North America

75,767

196,236

Celebes, Indonesia

Asia

74,845

193,847

South Island, New Zealand

Australia (and Oceania)

58,776

152,229

Java, Indonesia

Asia

49,926

129,307

North Island, New Zealand

Australia (and Oceania)

44,872

116,219

Cuba

North America

42,804

110,861

Newfoundland, Canada

North America

42,031

108,860

Luzon, Philippines

Asia

40,420

104,688

Iceland

Europe

39,741

102,928

Mindanao, Philippines

Asia

36,537

94,630

Ireland, Ireland/UK

Europe

32,375

83,849

Hokkaido, Japan

Asia

30,107

77,978

Sakhalin, Russia

Asia

29,500

76,400

Hispaniola, Haiti/Dominican Republic

North America

29,418

76,192

Banks, Northwest Territories, Canada

North America

27,038

70,028

Tasmania, Australia

Australia

26,410

68,401

Sri Lanka

Asia

25,332

65,610

Devon, Nunavut, Canada

North America

21,331

55,247

Highest Mountains of the World by Region

“I” in the name of a peak refers to the highest in a group of numbered peaks of the same name.

 

 

 

YEAR FIRST

NAME AND LOCATION HEIGHT IN M

HEIGHT IN FT

CLIMBED

Africa

 

 

 

Kilimanjaro (Kibo peak), Tanzania

5,895

19,340

1889

Mt. Kenya (Batian peak), Kenya

5,199

17,058

1899

Margherita, Ruwenzori Range, Dem. Rep. of the Congo/Uganda

5,119

16,795

1906

Ras Dejen, Simen Mtns., Ethiopia

4,620

15,157

1841

Antarctica

 

 

 

Vinson Massif, Sentinel Range, Ellsworth Mtns.

4,892

16,050

1966

Tyree, Sentinel Range, Ellsworth Mtns.

4,852

15,919

1967

Shinn, Sentinel Range, Ellsworth Mtns.

4,801

15,751

1966

Asia

 

 

 

Everest (Chomolungma), Himalayas,

8,850

29,035

1953

Nepal/Tibet, China

 

 

 

K2 (Godwin Austen) (Chogori), Karakoram Range,

8,611

28,251

1954

Pakistan/Xinjiang, China

 

 

 

Kanchenjunga I, Himalayas, Nepal/India

8,586

28,169

1955

Lhotse I, Himalayas, Nepal/Tibet, China

8,501

27,890

1956

Makalu I, Himalayas, Nepal/Tibet, China

8,463

27,766

1955

Caucasus

 

 

 

Elbrus, Russia

5,642

18,510

1874

Dykh-Tau, Russia

5,204

17,073

1888

Koshtan-Tau, Russia

5,151

16,900

1889

Shkhara, Russia/Georgia

5,068

16,627

1888

Europe

 

 

 

Mont Blanc, Alps, France/Italy/Switzerland

4,807

15,771

1786

Dufourspitze, Monte Rosa Massif, Alps, Switzerland/Italy

4,634

15,203

1855

Highest Mountains of the World by Region

 

 

 

 

YEAR FIRST

NAME AND LOCATION

HEIGHT IN M

HEIGHT IN FT

CLIMBED

Europe

 

 

 

Dom (Mischabel), Alps, Switzerland

4,545

14,912

1858

Weisshorn, Alps, Switzerland

4,505

14,780

1861

North America

 

 

 

McKinley, Alaska Range, Alaska

6,194

20,320

1913

Logan, St. Elias Mtns., Yukon, Canada

5,951

19,524

1925

Citlaltepetl (Orizaba), Cordillera Neo-Volcanica,

5,610

18,406

1848

Mexico

 

 

 

St. Elias, St. Elias Mtns., Alaska/Canada

5,489

18,008

1897

Australia (and Oceania)

 

 

 

Jaya (Sukarno) (Carstensz), Sudirman Range, Indonesia

5,030

16,5001

1962

Pilimsit (Idenburg), Sudirman Range, Indonesia

4,800

15,7501

1962

Trikora (Wilhelmina), Jayawijaya Mtns., Indonesia

4,750

15,5801

1912

Mandala (Juliana), Jayawijaya Mtns., Indonesia

4,700

15,4201

1959

South America

 

 

 

Aconcagua, Andes, Argentina/Chile

6,959

22,831

1897

Ojos del Salado, Andes, Argentina/Chile

6,893

22,614

1937

Bonete, Andes, Argentina

6,872

22,546

1913

Mercedario, Andes, Argentina/Chile

6,770

22,211

1934

Major Caves and Cave Systems of the World by Continent

NAME AND LOCATION

DEP

FEET

TH1

M

LEN

MILES

GTH2

KM

Africa

 

 

 

 

Ambatoharanana, Madagascar

N/A

N/A

11.2

18.1

Boussouil, Algeria

2,641

805

2.0

3.2

Ifflis, Algeria

3,839

1,170

1.2

2.0

Sof ‘Umar, Ethiopia

49

15

9.4

15.1

Tafna (Bou Ma’za), Algeria

N/A

N/A

11.4

18.4

Asia

 

 

 

 

Air Jernih, Malaysia

1,165

355

94.1

151.4

Boj-Bulok, Uzbekistan

4,642

1,415

8.9

14.3

Evren Gunay Dudeni, Turkey

4,688

1,429

1.9

3.1

Kap-Kutan/Promezhutochnaya, Turkmenistan

1,017

310

35.4

57.0

Oreshnaya, Russia

787

240

36.0

58.0

Australia (and Oceania)

 

 

Atea, Papua New Guinea

1,148

350

21.4

34.5

Bullita, NT, Australia

75

23

68.1

109.6

Bulmer, New Zealand

2,457

749

32.4

52.1

Neide-Muruk, Papua New Guinea

4,127

1,258

10.6

17.0

Nettlebed, New Zealand

2,917

889

15.1

24.2

Europe

 

 

Holloch, Switzerland

3,079

939

120.7

194.2

Jean Bernard, France

5,256

1,602

12.8

20.5

Krubera, Georgia

7,188

2,191

8.2

13.2

Optimisticheskaya, Ukraine

49

15

133.6

215.0

Trave, Spain

4,728

1,441

5.7

9.2

North America

 

 

Cuicateca, Mexico

4,869

1,484

16.3

26.2

Huautla, Mexico

4,839

1,475

38.6

62.1

Jewel, South Dakota

632

193

140.1

225.4

Mammoth-Flint Ridge, Kentucky

379

116

367.0

590.6

Wind, South Dakota

646

197

127.8

205.6

Major Caves and Cave Systems of the World

NAME AND LOCATION

DEP

FEET

m1

M

LEN

MILES

GTH2

KM

South America

 

 

 

 

Aonda, Venezuela

1,188

362

N/A

N/A

Barriguda, Brazil

200

61

18.6

30.0

Boa Vista, Brazil

164

50

63.7

102.5

Kaukiran, Peru

1,335

407

1.3

2.1

Sao Mateus-Imbira, Brazil

N/A

N/A

12.7

20.5

Major Deserts of the World by Continent

 

AREA

 

AREA

DESERT (LOCATION)

SQ KM

SQ MI

DESERT (LOCATION)

SQ KM

SQ MI

Africa

 

 

Australia

 

 

Sahara, northern Africa

8,600,000

3,320,000

Great Victoria, Western and

647,000

250,000

Kalahari, southwestern

930,000

360,000

South Australia

 

 

Africa

 

 

Great Sandy, northern

400,000

150,000

Namib, southwestern

135,000

52,000

Western Australia

 

 

Africa

 

 

Simpson, Northern Territory

145,000

56,000

Libyan, Libya, Egypt, and

N/A

N/A

Gibson, Western Australia

N/A

N/A

Sudan

 

\

North America

 

 

Asia

 

\

Great Basin, southwestern

492,000

190,000

Arabia, southwestern Asia

2,330,000

900,000

US

 

 

Gobi, Mongolia and

1,300,000

500,000

Chihuahuan, northern

450,000

175,000

northeastern China

 

 

Mexico

 

 

Rub’ al-Khali, southern

650,000

250,000

Sonoran, southwestern US

310,000

120,000

Arabian Peninsula

 

 

and Baja California

 

 

Karakum, Turkmenistan

350,000

135,000

Mojave, southwestern US

65,000

25,000

Kyzylkum, Kazakhstan and

300,000

115,000

Colorado, California

N/A

N/A

Uzbekistan

 

 

and nor thern Mexico

 

 

Takla Makan, northern

270,000

105,000

Yuma, Arizona and

N/A

N/A

China

 

 

Sonora, Mexico

 

 

Kavir, central Iran

260,000

100,000

 

 

 

Syrian, Saudi Arabia,

260,000

100,000

South America

 

 

Jordan, Syria, and Iraq

Patagonian, southern

673,000

260,000

Thar, India and Pakistan

200,000

77,000

Argentina

 

 

Lut, eastern Iran

52,000

20,000

Atacama, northern Chile

140,000

54,000

Major Volcanoes of the World by Continent

\

 

 

FIRST

 

\

ELEVATION

RECORDED

MOST RECENT

VOLCANO, LOCATION

M

FT

ERUPTION

ERUPTION

Africa

 

 

 

 

Kilimanjaro, Tanzania1

5,895

19,340

N/A

N/A

Cameroon, Cameroon

4,095

13,435

1650

2000

Teide (Tenerife), Canary Islands

3,715

12,188

N/A

1909

Nyiragongo, Dem. Rep. of the Congo

3,470

11,384

1884

2007

Nyamuragira, Dem. Rep. of the Congo

3,058

10,033

1882

2006

Antarctica

 

\

 

 

Erebus, Ross Island

3,794

12,447

1841

2007

Darnley, Sandwich Islands

1,100

3,609

1823

N/A

Asia, Oceania, and the Pacific

 

 

 

 

Klyuchevskaya, Kamchatka, Russia2

4,835

15,863

1697

2007

Mauna Kea, Hawaii

4,205

13,796

N/A

c. 2460 bc

Mauna Loa, Hawaii

4,170

13,681

1750

1984

Kerinci, Sumatra, Indonesia

3,800

12,467

1838

2008

Fuji, Honshu, Japan

3,776

12,388

1050 bc

1708

Rinjani, Lombok, Indonesia

3,726

12,224

1847

2004

Tolbachik, Kamchatka, Russia

3,682

12,080

1740

1976

Semeru, Java, Indonesia

3,676

12,060

1818

2007

Major Volcanoes of the World

 

 

 

FIRST

 

 

ELEVATION

RECORDED

MOST RECENT

VOLCANO, LOCATION

M

FT

ERUPTION

ERUPTION

Europe and the Atlantic

 

 

 

 

Etna, Italy

3,350

10,991

N/A

2007

Askja, Iceland

1,516

4,974

1875

1961

Hekla, Iceland

1,491

4,892

1104

2000

Vesuvius, Italy

1,281

4,203

79

1944

Stromboli, Italy

924

3,031

N/A

2007

North America

 

 

 

 

Citlaltepetl, Mexico

5,675

18,619

N/A

1846

Popocatepetl, Mexico

5,426

17,802

1347

2007

Rainier, Washington

4,392

14,409

N/A

1894

Shasta, California

4,317

14,163

1786

1786

Colima, Mexico

3,850

12,631

1576

2007

St. Helens, Washington

2,549

8,363

N/A

2007

South America

 

 

 

 

Guallatiri, Chile

6,071

19,918

1825

1960

Tupungatito, Chile

6,000

19,685

1829

1987

Cotopaxi, Ecuador

5,911

19,393

1532

1940

Lascar, Chile

5,592

18,346

1848

2007

Nevado del Ruiz, Colombia

5,321

17,457

1595

1991

Oceans & Seas

 

AREA

 

VOLUME

 

 

SQ KM

SQ MI

CU KM

CU MI

Pacific Ocean

 

 

 

 

without marginal seas

165,250,000

63,800,000

707,600,000

169,900,000

with marginal seas

179,680,000

69,370,000

723,700,000

173,700,000

Atlantic Ocean

 

 

 

 

without marginal seas

82,440,000

31,830,000

324,600,000

77,900,000

with marginal seas

106,460,000

41,100,000

354,700,000

85,200,000

Indian Ocean

 

 

 

 

without marginal seas

73,440,000

28,360,000

291,000,000

69,900,000

with marginal seas

74,920,000

28,930,000

291,900,000

70,100,000

Arctic Ocean

14,090,000

5,440,000

17,000,000

4,100,000

Australasian Central Sea

8,140,000

3,140,000

9,900,000

2,400,000

Gulf of Mexico and

4,320,000

1,670,000

9,600,000

2,300,000

Caribbean Sea

 

 

 

 

Mediterranean and

2,970,000

1,150,000

4,200,000

100,000

Black Seas

 

 

 

 

Bering Sea

2,304,000

890,000

3,330,000

80,000

Sea of Okhotsk

1,583,000

611,000

1,300,000

30,000

Hudson Bay

1,230,000

470,000

160,000

40,000

North Sea

570,000

220,000

50,000

10,000

Baltic Sea

420,000

160,000

20,000

5,000

Irish Sea

100,000

40,000

6,000

1,000

English Channel

75,000

29,000

4,000

1,000

 

AVERAGE DEPTH

 

 

M

FT

DEEPEST POINT

Pacific Ocean

 

 

 

without marginal seas

4,280

14,040

Mariana Trench

with marginal seas

4,030

13,220

(11,034 m; 36,201 ft)

Atlantic Ocean

 

 

 

without marginal seas

3,930

12,890

Puerto Rico Trench

with marginal seas

3,330

10,920

(8,380 m; 27,493 ft)

Indian Ocean

 

 

 

without marginal seas

3,960

10,040

Sunda Deep of the Java

with marginal seas

3,900

12,790

Trench (7,450 m; 24,442 ft)

Arctic Ocean

1,205

3,950

(5,502 m; 18,050 ft)

 

AVERAGE DEPTH

 

 

M

FT

DEEPEST POINT

Australasian Central Sea

1,210

3,970

N/A

Gulf of Mexico and

2,220

7,280

Cayman Trench

Caribbean Sea

 

 

(7,686 m; 25,216 ft)

Mediterranean and

1,430

4,690

Ionian Basin

Black Seas

 

 

(4,900 m; 16,000 ft)

Bering Sea

1,440

4,720

Bowers Basin (4,097 m; 13,442 ft)

Sea of Okhotsk

838

2,750

Kuril Basin (2,499 m; 8,200 ft)

Hudson Bay

128

420

(867 m; 2,846 ft)

North Sea

94

310

Skagerrak (700 m; 2,300 ft)

Baltic Sea

55

180

Landsort Deep (459 m; 1,506 ft)

Irish Sea

60

200

Mull of Galloway (175 m; 576 ft)

English Channel

54

180

Hurd Deep (172 m; 565 ft)

Major Natural Lakes of the World

Conversions for figures may have been rounded, thousands to the nearest hundred and hundreds to the nearest ten.

 

 

AREA

NAME

LOCATION

SQ MI

SQ KM

Nyasa (Malawi)

eastern Africa

11,430

29,604

Great Slave

Northwest

11,030

28,568

 

Territories,

 

 

 

Canada

 

 

Erie

Canada/US

9,910

25,667

Winnipeg

Manitoba,

9,416

24,387

 

Canada

 

 

Ontario

Canada/US

7,340

19,010

Aral Sea1

Central Asia

6,711

17,382

 

 

AREA

NAME

LOCATION

SQ MI

SQ KM

Caspian Sea

Central Asia

149,200

386,400

Superior

Canada/US

31,700

82,100

Victoria

eastern Africa

26,828

69,484

Huron

Canada/US

23,000

59,600

Michigan

US

22,300

57,800

Tanganyika

eastern Africa

12,700

32,900

Great Bear

Northwest

12,096

31,328

 

Territories,

 

 

\

Canada

 

 

Longest Rivers of the World by Continent

This list includes both rivers and river systems. Conversions of rounded figures may be rounded to the nearest 10 or 100 miles or kilometers.

 

 

 

LENGTH

NAME

OUTFLOW

MI

KM

Africa

 

 

 

Nile

Mediterranean Sea

4,132

6,650

Congo

South Atlantic Ocean

2,900

4,700

Niger

Gulf of Guinea

2,600

4,200

Zambezi

Mozambique Channel

2,200

3,540

Kasai

Congo River

1,338

2,153

Asia

\

 

 

Yangtze

East China Sea

3,915

6,300

Yenisey-Baikal-Selenga

Kara Sea

3,442

5,539

Huang He (Yellow)

Gulf of Chihli

3,395

5,464

Ob-Irtysh

Gulf of Ob

3,362

5,410

Amur-Argun

Sea of Okhotsk

2,762

4,444

Europe

 

 

 

Volga

Caspian Sea

2,193

3,530

Danube

Black Sea

1,770

2,850

Ural

Caspian Sea

1,509

2,428

Dnieper

Black Sea

1,367

2,200

Don

Sea of Azov

1,162

1,870

North America

 

Mississippi-Missouri-Jefferson

Gulf of Mexico

3,710

5,971

Mackenzie-Slave-Peace

Beaufort Sea

2,635

4,241

Missouri-Jefferson

Mississippi River

2,540

4,088

St. Lawrence-Great Lakes

Gulf of St. Lawrence

2,500

4,000

Mississippi

Gulf of Mexico

2,350

3,782

Longest Rivers of the World by Continent

 

 

 

LENGTH

NAME

OUTFLOW

MI

KM

Australia

 

 

 

Darling

Murray River

1,702

2,739

Murray

Great Australian Bight

1,572

2,530

Murrumbidgee

Murray River

1,050

1,690

Lachlan

Murrumbidgee River

930

1,500

Cooper Creek

Lake Eyre

880

1,420

South America

 

 

 

Amazon-Ucayali-Apurfmac

South Atlantic Ocean

4,000

6,400

Parana

Rio de la Plata

3,032

4,880

Madeira-Mamore-Guapore

Amazon River

2,082

3,352

Jurua

Amazon River

2,040

3,283

Purus

Amazon River

1,995

3,211

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