Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
10
Rattlesnake mating sessions have been known to last more than 22 hours.
232
Dogs sometimes fake being sick to get attention.
26
Penguins have a gland above their eye that turns saltwater into freshwater.
12
Denmark has twice as many pigs as there are people.
66
A 42-foot sperm whale has about 7 tons of oil in it.
209
Whales and dolphins can't taste anything other than salt.
11