Steller's Sea Cow
The kelp giant we lost
Conservation Threats
Genetic Threats
Inbreeding, genetic bottlenecks, and loss of genetic diversity in small populations
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Animals
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Genetic Threats Animals
Sand Lizard
Green-flanked sprinter of the sands
Pool Frog
Small frog, big role in wetlands
Galapagos Penguin
The penguin that lives on the equator
Saber-Toothed Tiger
Big bite, bigger grappling power
Red Wolf
America's rarest wild wolf
Indri
The singing giant of Madagascar's trees
Discus
Discus: the Amazon's living discus
Edible Frog
The hybrid water frog of Europe
Saola
The Annamites' "spindlehorn" mystery
Amur Leopard
Ghost of the Snowy Forest
Spix's Macaw
Blue hope from Brazil's Caatinga
Wyoming Toad
Wyoming's comeback toad
Hawaiian Crow
'Alala: Restoring Hawaii's forests
Scimitar-horned Oryx
Scimitar horns, desert survivor
Père David's Deer
China's rescued wetland deer
Aurochs
The original wild cattle
Megalodon
The megatooth ruler of ancient seas
Freshwater Suckerfish
Bottom cleaners of North America's waters
Bowhead Whale
The Icebreaker with a 200-Year Life
Barramundi Fish
From river to reef, one fierce fish
Vaquita
Save the Gulf's shy little porpoise
Salmon
Born in rivers, powered by the sea
Coelacanth
The deep-sea fish with a skull hinge