Potassium-40 is the source of radioactivity found in all humans and animals. Also, Bananas are radioactive too 🙂
Animal Facts, facts about animals
Sexual cannibalism is fairly common among mantises especially those in captivity.
Lightning bugs or fireflies produce a light using chemical reactions in their abdomens which is used for mate selection.
In Fairbanks Alaska it is illegal to feed alcoholic beverages to a moose.
In Alabama, bear wrestling matches are prohibited.