Houseflies don’t allow their short lifespans (14 days) to hinder their musical abilities. They always hum in the key of F.
Kangaroos use their tails for balance, so if you lift a kangaroo’s tail off the ground, it can’t hop.
On average, there are 50,000 spiders per acre in green areas. Bet you’ll think twice before going outside now – unless you’re this guy.
Tigers not only have stripes on their fur, they also have them on their skin. No two tigers ever have the same stripes.
Here’s a tidbit that might be useful if you plan on becoming the next Steve Irwin: To escape the grip of a crocodile’s jaw, push your thumb into its eyeball – It will let you go instantly.
Fleas can jump up to 200 times their height. This is equivalent to a man jumping the Empire State Building in New York.
A cat has 32 muscles in each ear. All the better for them to eavesdrop on your conversations and plot your demise.
Elephants can smell water up to 3 miles away. They are also one of the three mammals that undergo menopause – the other two being humpback whales and human females.
Because beavers’ teeth never stop growing, they must constantly gnaw on objects to keep them at a manageable length. Their teeth would eventually grow into their brain if they didn’t maintain them.
You might want to thank a squirrel the next time you enjoy the shade of a tree. Millions of trees are accidentally planted by squirrels that bury nuts and then forget where they hid them.
Humpback whales create the loudest sound of any living creature. And you thought the loudest sound came from that two-year-old you sat next to on your trans-continental flight, didn’t you?
Pigs communicate constantly with one another; more than 20 vocalizations have been identified that pigs use in different situations, from wooing mates to saying, “I’m hungry!”