The human brain stops growing at age 18, and is 80% water. Your skin weighs twice as much as your brain. The storage capacity of the human brain is about 4 terabytes (4,000 gigabytes).

A peanut is a legume, not nut.

Honey is the only food that cannot spoil.

Mel Blanc, the voice of Bugs Bunny, was allergic to carrots.

A pig's orgasm lasts for 30 minutes.

A blue whale gains approximately 200 pounds a day for the first seven months of its life.

The male praying mantis cannot copulate while its head is attached to its body. The female initiates sex by ripping the male's head off.

An elephant can be pregnant for two years.

The fingerprints of koala bears are virtually indistinguishable from those of humans, so much so that they could be confused at a crime scene.

All polar bears are left-handed.

The human body has 70,000 miles of blood vessels.