Whales and dolphins can't taste anything other than salt.
11
There is a sea snail that wears a suit of iron plated armor. It is the only known animal to use iron sulphide as skeletal material.
9
Mosquitoes don't just bite you, they also pee on you.
11
The elephant brain weighs about 6,000g.
274
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
Dogs sometimes fake being sick to get attention.
26