Bats Marsupials Chiroptera Bears Polar Bears Woolly Mammoths Felidae Shrews Rodents Rhinocerotidae Sloths Lynx Lions Animal Behavior Vampire Bats Felines Primatology Ursidae Squirrels New Species Amphibians Mount Lyell Shrew Rabbit Species Flying Squirrel Behavior Antechinus Elephants Carnivores Ruminant Hoofed Mammals Marsupial Mole Research Sheep Rhinoceros Hyena Monotreme Anatomy Mammal Evolution Mammalian Evolution