A goldfish has a memory span of three seconds. A rainbow can occur only when the sun is 40 degrees or less above the horizon. Penguins can jump as high as 6 feet in the air. The fastest typist can type at 211 words per minute. The average human produces 25,000 quarts of spit in a lifetime, enough to fill two swimming pools.
Apples are more efficient than caffeine in keeping people awake in the mornings.
A sneeze zooms out of your mouth at over 100 m.p.h. Ants do not sleep. The poison-arrow frog has enough poison to kill about 2,200 people. The USA bought Alaska from Russia for 2 cents an acre. Each person inhales about seven quarts of air every minute.