The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
10
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
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Cat families usually play best in even numbers. Cats and kittens should be acquired in pairs whenever possible!
156
By putting a frog in a bucket of milk, scientists following up on an ancient Russian way of keeping milk from going sour have identified a wealth of new antibiotic substances.
9
Early American humans hunted car-size armadillos and used their shells for houses.
12
Cats sleep for 70% of their lives.
8