Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Drivers kill more deer than hunters do.
660
Meysi is one of the world's smallest dogs, measuring in at just 7cm tall, 12cm long, and weighing a meagre 250 grams (only slightly heavier than a hamster!)
11
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
The oldest recorded elephant lived for 82 years.
213
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
Cat families usually play best in even numbers. Cats and kittens should be acquired in pairs whenever possible!
156