Endangered Species | Animals

The conservation status of a species indicates the species’ likelihood of becoming extinct. An endangered species is very likely to become extinct in the near future, either worldwide or in a particular jurisdiction. Endangered species are at risk due to factors like habitat loss, poaching, and invasive species.

The International Union for Conservation of Nature (IUCN) Red List lists the global conservation status of many species. In 2012 the IUCN Red List listed 3,079 animal species and 2,655 plant species as endangered. There are laws in many nations that protect conservation-reliant species like forbidding hunting and restricting land development.

How can we protect endangered species?

We can protect endangered species by learning more about the endangered species around our surrounding communities, minimizing the use of pesticides, and reducing our consumption of water within the home. Other ways to protect endangered species include recycling, not littering, and not purchasing products that are made from endangered animal species.

What is the most endangered species in the world?

The most endangered species in the world include the southern rockhopper penguin, snow leopard, savanna elephant, polar bear, and olive ridley turtle. Other endangered animal species are the marine iguana, loggerhead turtle, and hippopotamus. The greater one-horned rhino, greater white shark, giant tortoise, giant panda, and dugong are also considered endangered animal species.

Why are species endangered?

Animal species are endangered due to loss of habitat which happens either through human actions or naturally as well as loss of genetic variation. Other reasons for species being endangered include loss of genetic variation, which can sometimes occur naturally or happen due to human activity.

Endangered Species Guides
Browse through our curated Endangered Species Guides for additional categorizations, tips, details, variations, styles, and histories of Endangered Species. Guides provide additional insights into the unique properties and shared relationships between elements.
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24”-50” | 61-127 cm
7’-15’ | 2.1-4.6 m
550–2000 lb | 250-907 kg
15-30 years
Atlantic Bluefin Tuna
127.000
460.000
907.000
30.00
4300
3D
Atlantic Bluefin Tuna
34”-45” | 86-114 cm
5’3”-6’5” | 160-196 cm
220-650 lb | 100-295 kg
8-10 years (wild); 18-25 years (captivity)
Bengal Tiger
114.000
196.000
295.000
25.00
45000
3D
Bengal Tiger
4.9’-6.2’ | 1.5-1.9 m
3’-3.6’ | .9-1.1 m
9.8’-12.3’ | 3-3.75 m
1,764-3,086 lb | 800-1,400 kg
30-50 years
Black Rhinoceros
190.000
110.000
375.000
1400.000
50.00
66000
3D
Black Rhinoceros
3.9”-5.9” | 10-15 cm
2.6”-3.5” | 6.5-9 cm
13”-18.1” | 33-46 cm
1.3-3.1 lb | .6-1.4 kg
4-9 years
Black-Footed Ferret
15.000
9.000
46.000
1.400
9.00
24000
3D
Black-Footed Ferret
13’-16’ | 3.96-4.88 m
25.3’-31.8’ | 7.7-9.7 m
82’-105’ | 25-32 m
55-165 tons | 50-150 metric tons
80-90 years
Blue Whale
488.000
970.000
3200.000
150000.000
90.00
182000
3D
Blue Whale
Bonobo
671800
39”-49” | 99-125 cm (Upright)
10.6”-14.2” | 27-36 cm
27.6”-32.7” | 70-83 cm
60-86 lb | 27-39 kg
20-45 years (wild); 50-58 years (captivity)
Bonobo
125.000
36.000
83.000
39.000
58.00
671800
3D
Bonobo
39.4”-59” | 100-150 cm (Upright)
18.9”-28” | 48-71 cm
31.9”-47.6” | 81-121 cm
110-220 lb | 50-100 kg
35-45 years (wild); 50-60 years (captivity)
Bornean Orangutan
150.000
71.000
121.000
100.000
60.00
16800
3D
Bornean Orangutan
63”-72” | 160-183 cm (Upright)
25.2”-28” | 64-71 cm
37.4”-47.2” | 95-120 cm
220-460 lb | 100-210 kg
30-40 (wild); 40-60 (captivity)
Eastern Lowland Gorilla
183.000
71.000
120.000
210.000
60.00
4350
3D
Eastern Lowland Gorilla
9.5’-11.5’ | 2.9-3.5 m
15.4’-18.4’ | 4.7-5.6 m
75’-90’ | 22.9-27.4 m
74-114 tons | 67-103 metric tons
80-100 years
Fin Whale
350.000
560.000
2740.000
103419.000
100.00
35800
3D
Fin Whale
18”-21” | 46-53 cm
5.5”-6.7” | 14-17 cm
3.5-6 lb | 1.6-2.7 kg
15-20 years
Galápagos Penguin
53.000
17.000
2.700
20.00
16400
3D
Galápagos Penguin
1’6”-3" | .46-.91 m
4’6”-6’ | 1.37-1.83 m
150-250 lb | 68-114 kg
15-25 (wild); 20-30 years (captivity)
Giant Panda Bear
91.000
183.000
114.000
30.00
307000
3D
Giant Panda Bear
14.2”-18.9” | 36-48 cm
27.5”-36.2” | 70-92 cm (Carapace)
36”-48” | 91-122 cm (Carapace)
243-419 lb | 110-190 kg
60-75 years (wild); 80-120 years (captivity)
Green Sea Turtle
48.000
92.000
122.000
190.000
120.00
46700
3D
Green Sea Turtle
9.4”-15” | 24-38 cm
17.7”-27.2” | 45-69 cm (Carapace)
24”-36” | 61-91 cm (Carapace)
99-198 lb | 45-90 kg
30-45 years (wild); 30-60 years (captivity)
Hawksbill Sea Turtle
38.000
69.000
91.000
90.000
60.00
15400
3D
Hawksbill Sea Turtle
6.58’-11.42’ | 2-3.5 m
3.28’-6.23’ | 1-1.9 m
8.2’-14.44’ | 2.5-4.4 m
4,409-11,023 lb | 2,000-5,500 kg
50-80 years
Indian Elephant
350.000
190.000
440.000
5500.000
80.00
61700
3D
Indian Elephant
16”-19” | 42-49 cm
19”-22” | 48-56 cm
7’-8.17’ | 2.13-2.49 m
154-243 lb | 70-110 kg
18-26 years
Indus River Dolphin
49.000
56.000
249.000
110.000
26.00
4500
3D
Indus River Dolphin
14”-21” | 36-54 cm
15”-23” | 39-59 cm
5.92’-9’ | 1.8-2.74 m
198-441 lb | 90-200 kg
15-30 years
Irrawaddy Dolphin
54.000
59.000
274.000
200.000
30.00
23400
3D
Irrawaddy Dolphin
4.9’-5.6’ | 1.5-1.7 m
3’-3.3’ | .9-1 m
9.8’-11.2’ | 3-3.4 m
3,307-4,409 lb | 1,500-2,000 kg
30-45 years
Javan Rhinoceros
170.000
100.000
340.000
2000.000
45.00
29700
3D
Javan Rhinoceros
55”-67” | 140-170 cm (Upright)
24”-29.1” | 61-74 cm
37.4”-45.3” | 95-115 cm
154-419 lb | 70-190 kg
35-40 years (wild); 40-50 years (captivity)
Mountain Gorilla
170.000
74.000
115.000
190.000
50.00
27250
3D
Mountain Gorilla
9.2’-11.1’ | 2.8-3.4 m
14.8’-18’ | 4.5-5.5 m
43’-52’ | 13.1-15.8 m
44-75 tons | 40-68 metric tons
50-70 years
North Atlantic Right Whale
340.000
550.000
1580.000
68039.000
70.00
11000
3D
North Atlantic Right Whale
3.5”-7.1” | 9-18 cm
30”-60” | 76-152 cm
80-100 lb | 36-45 kg
40-70 years
Pallid Sturgeon
18.000
152.000
45.000
70.00
1620
3D
Pallid Sturgeon
Red Panda
1100000
11”-13.4” | 28-34 cm
5.5”-7.1” | 14-18 cm
20”-25.2” | 51-64 cm
8-17 lb | 3.6-7.7 kg
8-22 years
Red Panda
34.000
18.000
64.000
7.700
22.00
1100000
3D
Red Panda
Saola
45600
40.2”-45.7” | 102-116 cm
11”-13” | 28-33 cm
46”-52.75” | 117-134 cm
175-220 lb | 80-100 kg
8-11 years (wild); 12-15 years (captivity)
Saola
116.000
33.000
134.000
100.000
15.00
45600
3D
Saola
Sea Otter
117000
12.2”-18.5” | 31-47 cm
10.2”-15.75” | 26-40 cm
29.5”-45.3” | 75-115 cm
31-99 lb | 14-45 kg
10-23 years
Sea Otter
47.000
40.000
115.000
45.000
23.00
117000
3D
Sea Otter
5.9’-8.9’ | 1.8-2.7 m
11.2’-16.1’ | 3.4-4.9 m
45’-65’ | 13.7-19.8 m
18-30 tons | 16-27 metric tons
50-75 years
Sei Whale
270.000
490.000
1980.000
27215.000
75.00
14700
3D
Sei Whale
22”-26” | 56-66 cm
36”-51” | 91-130 cm
75-120 lb | 34-54 kg
8-15 years (wild); 18-22 years (captivity)
Snow Leopard
66.000
130.000
54.000
22.00
121000
3D
Snow Leopard
4.4’-5.4’ | 1.35-1.65 m
2.5’-3.1’ | .75-.95 m
7.9’-9.8’ | 2.4-3 m
1,102-2,094 lb | 500-950 kg
30-35 years
Sumatran Rhinoceros
165.000
95.000
300.000
950.000
35.00
18300
3D
Sumatran Rhinoceros
13.5”-17” | 34-43 cm
22”-28” | 56-71 cm
13-18 lb | 6-8 kg
4-6 years (wild); up to 8 years (captivity)
Tasmanian Devil
43.000
71.000
8.000
8.00
127000
3D
Tasmanian Devil
Vaquita
186000
12”-14” | 30-36 cm
12”-15” | 30-37 cm
4’-5’ | 1.2-1.5 m
100-110 lb | 45-50 kg
20 years (average)
Vaquita
36.000
37.000
150.000
50.000
20.00
186000
3D
Vaquita
39”-59” | 99-150 cm (Upright)
13”-18.1” | 33-46 cm
27.2”-37.8” | 69-96 cm
88-104 lb | 40-47 kg
15-25 years (wild); 30-50 years (captivity)
Western Chimpanzee
150.000
46.000
96.000
47.000
50.00
900
3D
Western Chimpanzee
30’-62’ | 9.1-18.9 m
41000-50000 (20.6-25 tons) | 18600-22675 kg
70-130 years
Whale Shark
1890.000
22675.000
130.00
110000
3D
Whale Shark
Bornean Orangutan (Pongo pygmaeus)
Scale illustration of an average Bornean Orangutan compared to other species of Apes

The Bornean Orangutan (Pongo pygmaeus) is a great ape species native to Asia. They have shaggy bright red-orange fur and long arms with both hands and feet suited to grasping tree branches. Bornean orangutans eat up to five hundred different types of plants, but love fruits the best. They live in the rainforests of the island of Borneo, spread across Indonesia, Malaysia, and Brunei. They are the largest arboreal mammals in existence, and one of only three great ape species native to Asia. They also use tools in their daily life, including using sticks to check water depth.

Bornean Orangutans have an upright standing height of 39.4”-59” (100-150 cm), height on all fours of 30.7”-45.7” (78-116 cm), body length between 31.9”-47.6” (81-121 cm), and an estimated body width of 18.9”-28” (48-71 cm). The typical weight of the Bornean Orangutan is in the range of 110-220 lb (50-100 kg). Bornean Orangutans have lifespans between 35-45 years in the wild and 50-60 years in captivity.

Group of measured illustrations of the Bornean Orangutan seen from the front and side
The Bornean Orangutan (Pongo pygmaeus) is a great ape species native to Asia. They have shaggy bright red-orange fur and long arms with both hands and feet suited to grasping tree branches. Bornean orangutans eat up to five hundred different types of plants, but love fruits the best.

Bornean Orangutans have an upright standing height of 39.4”-59” (100-150 cm), height on all fours of 30.7”-45.7” (78-116 cm), body length between 31.9”-47.6” (81-121 cm), and an estimated body width of 18.9”-28” (48-71 cm). The typical weight of the Bornean Orangutan is in the range of 110-220 lb (50-100 kg). Bornean Orangutans have lifespans between 35-45 years in the wild and 50-60 years in captivity.

Group of measured illustrations of the Bornean Orangutan seen from the front and side
Bornean Orangutan (Pongo pygmaeus)
Height:
39.4”-59” | 100-150 cm (Upright)
Width:
18.9”-28” | 48-71 cm
Length:
31.9”-47.6” | 81-121 cm
Depth:
Height (All Fours)
30.7”-45.7” | 78-116 cm
Weight:
110-220 lb | 50-100 kg
Area:
Scientific Name
Pongo pygmaeus
Lifespan
35-45 years (wild); 50-60 years (captivity)

Drawings include:

Bornean Orangutan side elevation (assorted), front

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Black-Footed Ferret (Mustela nigripes)
Dimensioned comparison drawing of the Black-Footed Ferret compared to similar Mustelid species

The Black-Footed Ferret, Mustela nigripes, is a mustelid species native to North America; it is also known as the American polecat. Due to its small and restricted populations, it is listed as an endangered species by the IUCN. The main differentiation between the black-footed ferret and the European polecat, is the American polecat has a greater contrast between its dark limbs and pale body, and a shorter black tail-tip length. The species is largely nocturnal and solitary with exception of when breeding and raising litters. 91% of its diet is prairie dogs.

The Black-Footed Ferret has a body length in the range of 13”-18.1” (33-46 cm) and total weight of 1.3-3.1 lb (.6-1.4 kg). Black-Footed Ferrets have a shoulder height between 3.9”-5.9” (10-15 cm), body width of 2.6”-3.5” (6.5-9 cm), and tail length of 4.3”-5.1” (11-13 cm). The typical lifespan of the Black-Footed Ferret is between 4-9 years.

Set of scaled elevation drawings of the Black-Footed Ferret viewed from the front and side
The Black-Footed Ferret, Mustela nigripes, is a mustelid species native to North America; it is also known as the American polecat. Due to its small and restricted populations, it is listed as an endangered species by the IUCN. The species is largely nocturnal and solitary.

The Black-Footed Ferret has a body length in the range of 13”-18.1” (33-46 cm) and total weight of 1.3-3.1 lb (.6-1.4 kg). Black-Footed Ferrets have a shoulder height between 3.9”-5.9” (10-15 cm), body width of 2.6”-3.5” (6.5-9 cm), and tail length of 4.3”-5.1” (11-13 cm). The typical lifespan of the Black-Footed Ferret is between 4-9 years.

Set of scaled elevation drawings of the Black-Footed Ferret viewed from the front and side
Black-Footed Ferret (Mustela nigripes)
Height:
3.9”-5.9” | 10-15 cm
Width:
2.6”-3.5” | 6.5-9 cm
Length:
13”-18.1” | 33-46 cm
Depth:
Weight:
1.3-3.1 lb | .6-1.4 kg
Area:

Tail Length: 4.3”-5.1” | 11-13 cm

Scientific Name
Mustela nigripes
Lifespan
4-9 years

Drawings include:

Black-Footed Ferret side elevation (assorted), front

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Sei Whale (Balaenoptera borealis)
Scale illustration of an average Sei Whale with dimensions length compared to a human and sea cows

Sei whales compare to the cheetah because of their ability to sprint and tire quickly. They are the fourth-largest rorqual when compared to other baleen relatives and prefer deep offshore waters. They fall under the family Balaenopteridae or ”winged whales” inhabiting most oceans except the equatorial waters and cold polar regions. They have a lifespan of 70 years and migrate annually. Sei whales are identified by a distinctive upright dorsal fin near their posterior with a white coating on their underside and bodies covered in oval-shaped scars. These animals prefer to travel solo or in small pods and sink below the surface rather than arch their backs when diving like other baleen whales.

Sei Whales have a total length between 45’-65’ (13.7-19.8 m), body height of 5.9’-8.9’ (1.8-2.7 m), and width of 11.2’-16.1’ (3.4-4.9 m). The typical weight of the Sei Whale is in the range of 18-30 tons (16-27 metric tons). Sei Whale have lifespans between 50-75 years.

Pair of elevation illustrations of the Sei Whale seen from the side and front
Sei whales compare to the cheetah because of their ability to sprint and tire quickly. They are the fourth-largest rorqual when compared to other baleen relatives and prefer deep offshore waters. They fall under the family Balaenopteridae or ”winged whales” inhabiting most oceans except the equator.

Sei Whales have a total length between 45’-65’ (13.7-19.8 m), body height of 5.9’-8.9’ (1.8-2.7 m), and width of 11.2’-16.1’ (3.4-4.9 m). The typical weight of the Sei Whale is in the range of 18-30 tons (16-27 metric tons). Sei Whale have lifespans between 50-75 years.

Pair of elevation illustrations of the Sei Whale seen from the side and front
Sei Whale (Balaenoptera borealis)
Height:
5.9’-8.9’ | 1.8-2.7 m
Width:
11.2’-16.1’ | 3.4-4.9 m
Length:
45’-65’ | 13.7-19.8 m
Depth:
Weight:
18-30 tons | 16-27 metric tons
Area:
Scientific Name
Balaenoptera borealis
Lifespan
50-75 years

Drawings include:

Sei Whale side elevation, front, top

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Bengal Tiger (Panthera tigris tigris)
Dimensioned comparison drawing of the Bengal Tiger compared to an average person

The Bengal Tiger (Panthera tigris tigris), also known as the Royal Bengal tiger, is the national animal of India and Bangladesh. It is considered one of the biggest cats in size as well as population as the Bengal tiger makes up nearly half of the existing tiger population.

Its coat is light orange and features black stripes on its body and black rings on its tail. It also has a substantial set of teeth as its canines are recorded as the longest of all cats. The Bengal tiger leads a solitary life, maintaining only a basic social unit of the female and her cubs.

Bengal Tigers have a shoulder height between 34”-45” (86-114 cm), body length of 5’3”-6’5” (160-196 cm), and weight in the range of 220-650 lb (100-295 kg). The tail of a Bengal Tiger is 33”-43” (84-109 cm) in length. Bengal Tigers have a typical lifespan of 8-10 years in the wild and 18-25 years in captivity.

Set of standing side elevation drawings of the Bengal Tiger
The Bengal Tiger (Panthera tigris tigris), also known as the Royal Bengal tiger, is the national animal of India and Bangladesh. It is considered one of the biggest cats in size as well as population as the Bengal tiger makes up nearly half of the existing tiger population.

Bengal Tigers have a shoulder height between 34”-45” (86-114 cm), body length of 5’3”-6’5” (160-196 cm), and weight in the range of 220-650 lb (100-295 kg). The tail of a Bengal Tiger is 33”-43” (84-109 cm) in length. Bengal Tigers have a typical lifespan of 8-10 years in the wild and 18-25 years in captivity.

Set of standing side elevation drawings of the Bengal Tiger
Bengal Tiger (Panthera tigris tigris)
Height:
34”-45” | 86-114 cm
Width:
Length:
5’3”-6’5” | 160-196 cm
Depth:
Withers Height
Weight:
220-650 lb | 100-295 kg
Area:
Tail Length
33”-43” | 84-109 cm
Scientific Name
Panthera tigris tigris
Lifespan
8-10 years (wild); 18-25 years (captivity)

Drawings include:

Bengal Tiger side elevation (standing), front (standing), side (lying down)

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Pallid Sturgeon (Scaphirhynchus albus)
Scale illustration of an average Pallid Sturgeon compared to a human and other freshwater fish species

The Pallid Sturgeon (Scaphirhynchus albus) gets its name from the pale coloration. It is found in the lower Mississippi river basin and the water bodies of Missouri. It has a slow growth rate but is long-lived. The Pallid sturgeon has maintained most of its primitive features and is separated from the shovelnose sturgeon by its enormous size. It is rarely seen, and very little is known about it since it is a bottom-dweller. Apart from the pale coloration on the body, the backs and sides are greyish-white, while the tail is heterocercal. The body lacks scales nor bones but is made of a cartilaginous skeleton. The head and snout are longer, making it have an extended mouth. However, it lacks teeth.

Pallid Sturgeon have a total length between 30”-60” (76-152 cm) and body height of 3.5”-7.1” (9-18 cm). The typical weight of the Pallid Sturgeon is in the range of 80-100 lb (36-45 kg). Pallid Sturgeon have lifespans between 40-70 years.

Series of elevation illustrations of the Pallid Sturgeon
The Pallid Sturgeon (Scaphirhynchus albus) gets its name from the pale coloration. It is found in the lower Mississippi river basin and the water bodies of Missouri. It has a slow growth rate but is long-lived. The Pallid sturgeon has maintained most of its primitive features.

Pallid Sturgeon have a total length between 30”-60” (76-152 cm) and body height of 3.5”-7.1” (9-18 cm). The typical weight of the Pallid Sturgeon is in the range of 80-100 lb (36-45 kg). Pallid Sturgeon have lifespans between 40-70 years.

Series of elevation illustrations of the Pallid Sturgeon
Pallid Sturgeon (Scaphirhynchus albus)
Height:
3.5”-7.1” | 9-18 cm
Width:
Length:
30”-60” | 76-152 cm
Depth:
Weight:
80-100 lb | 36-45 kg
Area:
Scientific Name
Scaphirhynchus albus
Lifespan
40-70 years

Drawings include:

Pallid Sturgeon side elevation, front

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