There is a species of clam that can grow up to four feet long and weigh up to 500 pounds.
89
A female ferret will die if it goes into heat and cannot find a mate.
143
It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
109
Cats recognise the voice of their owner, but never evolved to care.
22
A blue whale's aorta (the main blood vessel) is large enough for a human to crawl through.
52
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
Mosquitoes don't just bite you, they also pee on you.
11