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.
25
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
Rattlesnake mating sessions have been known to last more than 22 hours.
232
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
Sergeant Stubby was the only war dog to be promoted to sergeant through combat in WWI. He saved his regiment from surprise mustard gas attacks, found and comforted the wounded, and even once caught a German spy by the seat of his pants, holding him there until American Soldiers found him.
16
The seahorse is the only fish to have a neck.
12
It has been scientifically proven that stroking a cat can lower one's blood pressure!
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