The largest egg laid by a living bird is that of the North African Ostrich. It is 6 to 8 inches in length and 4 to 6 inches in diameter. The smallest is that of the hummingbird. It is less than 0.39 inches in diameter. An electric eel can produce a shock of 600 volts.
Cows can sleep standing up.
Submitted by D. A Giant squid's eye can be as big as a basketball. Submitted by SpeederGal Salamanders are known to come out of wood when it was burning inside a fireplace, this is because Salamanders hibernate in wood. Chimpanzees use tools more than any other animal except man. Elephants purr like cats do, as a means of communication.