A group of geese in the air is called a skein. A duck's quack does not echo, and no one knows why. The longest recorded flight of chicken is thirteen seconds. New Zealand kiwis lay the largest eggs with respect to their body size of any bird. A full grown bear can run as fast as a horse.
Reindeer milk has more fat than cows milk.
It takes forty minutes to hard boil an ostrich egg. Shrimps hearts are in their heads. The average garden variety caterpillar has 248 muscles in its head. It is physically impossible for pigs to look up into the sky. Chickens that lay brown eggs have read ear lobes.