Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Two dogs were among the Titanic survivors.
262
Gorillas can catch human colds and other illnesses.
205
Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Crows living in some urban areas drop nuts into traffic to let the passing cars crush them, then they wait for the red lights to stop the traffic so they can grab and eat it.
17