These endangered marine mammals can weigh an astonishing amount and live in this ocean. Their numbers declined rapidly after they were heavily hunted for their blubber and ivory.
Northern flying squirrel
They are not capable of flight like birds, but the nocturnal Northern flying squirrel glides effortlessly between trees. Find out how far they can go.
A powerful predator, the tiger's six remaining species are facing extinction, and all are under protection. Yet an illegal act still threatens their existence.
The world's largest land carnivore is threatened by a global phenomenon, according to scientists, that is depleting their sea ice habitat
These adorable penguins can be found on a continent with a typically warm climate but are considered threatened due to their proximity to oil spills.
These massive fish have become extinct in this sea as well as in the largest enclosed body of water on Earth.
Native to an Eastern country, the giant panda is endangered because of farming and deforestation.
The endangered monarch uses its poisonous toxins as a defense mechanism from predators and is threatened by deforestation.
The males of these endangered animals can grow to the size of a tall human.
Scientists believe these small elephants separated from their larger relatives possibly 300,000 years ago. They are found on the largest island in the world.