Evolution in action. A yellow-bellied three-toed skink, Australian lizard, is abandoning egg-laying in favor of live birth.
As a way to detect nighttime predators, many species of animals (ducks, dolphins, whales, iguanas) will sleep with one eye open. One hemisphere of their brain is asleep while the other one is awake.
Koko the Gorilla named a kitten All Ball. All Ball died in an accident and Koko signed she was sad and cried alone when no one was around, but there is an audio recording.
A tiger is most likely to win a fight against a lion.
One leopard killed 410 people and was hunted down by the same man that killed the tiger with 436 victims. They were active in the same region at the same time.
There is a species of crabs that can grow larger than humans.
Sloths only poop once a week and it’s called the poo dance.
Scientist in Nevada are creating sheep that are part human with the main purpose “to produce a source of organs, especially livers, to transplant someday into humans.“
Female kangaroos have 3 vaginas.