Cats and dogs can hear ultrasound.
350
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Whales and dolphins can't taste anything other than salt.
11
Female kangaroos have three vaginas.
2
When cats are happy, they may squeeze their eyes shut.
10
In 1955, the citizens of São Paulo were so upset with their government that they elected a rhinoceros named Cacareco (meaning rubbish) to the city council in protest, with over 100,000 votes.
18
15% of snails survive digestion by birds and are found alive in their droppings, potentially leading to the spread of snail populations.
1