The penguin is the only bird that can swim, but not fly!
Our eyes are always the same size from birth.
The placement of a donkey's eyes in its head enables it to see all four feet at all times!
No piece of square dry paper can be folded more than 7 times in half!
Fish communicate with each other by rasping their teeth to make sounds in their throat, or by using their swim bladder to create sounds.
The average person sees over 1,460 dreams a year!
Venus is the only planet that rotates clockwise.
Snails can sleep for up to 3 years.
The sun is 330,330 times larger than the earth!
Fingernails grow 4 times faster than toenails!