Parrot parents "name" their children with a signature call.
112
Dolphins have names for one another.
18
Dogs sometimes fake being sick to get attention.
26
Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12
Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10
Condoms were originally made of animal intestines or linen.
347