Cats and dogs can hear ultrasound.
350
Cows can sleep standing up, but they can only dream lying down.
745
There's a young hippo and a 130+ year old tortoise in a Kenyan wildlife preserve who are best friends and they even sleep and play together.
40
Jellyfish as a species are actually older than dinosaurs and sharks.
383
15% of snails survive digestion by birds and are found alive in their droppings, potentially leading to the spread of snail populations.
1
Whales and dolphins can't taste anything other than salt.
11