One reason that kittens sleep so much is because a growth hormone is released only during sleep.
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Penguins have a gland above their eye that turns saltwater into freshwater.
12
In 2011, a male tiger in India adopted a litter of orphaned cubs, taking on the role of ‘mother’. Wildlife officials say such behavior had never been observed before.
9
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
Nicole Kidman is scared of butterflies.
65
The ancestor of all domestic cats is the African Wild Cat which still exists today.
12
The largest breed of rabbit is the Flemish Giant.
65