(1) Camels can down 30 gallons (113 liters) of water in just 13 minutes. The water is stored in the camel bloodstream, while the fatty hump Rather than being stored in its fatty hump serves as a source of nourishment when food is scarce.
(2) Gravity on the moon is a sixth of what it is on Earth. Someone who weighs 150 pounds (68 kg) on this planet moves the scales at only 25 pounds (11 kg) on the moon. Its gravity is so much lower because the moon is just 1 percent the mass of Earth.
(3) The adult skeleton has 206 bones. The smallest is the stapes or stirrup, the innermost of three bones in the middle ear; the femur (thighbone) is the longest and strongest, and the tibia in the lower leg is the second largest in the human skeleton.
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