Cows can sleep standing up, but they can only dream lying down.
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Sheep, goats, octopuses, and toads have rectangular pupils.
7
By putting a frog in a bucket of milk, scientists following up on an ancient Russian way of keeping milk from going sour have identified a wealth of new antibiotic substances.
9
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
In order to enhance the taste, Japanese macaque wash their food in salt water before they eat. They also make snowballs for fun!
7
Dogs sometimes fake being sick to get attention.
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