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
Whales and dolphins can't taste anything other than salt.
11
Queen ants have one of the longest life-spans of any known insect - typically up to 30 years. Western harvester ant queens can live up to 40 years!
2
The seahorse is the only fish to have a neck.
12
Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10
Cats and dogs can hear ultrasound.
350