Humans have 33 vertebrae in the spine. Snakes can have up to 400 vertebrae, with ribs attached to each one.
The smallest bone in the human body is found in the middle ear. It is called the staples bone, and it measures 2.8 millimeters long.
A dolphin's flipper is made up of five distinct bone structures, similar to that of a human hand.
At Dinosaur Ridge in Colorado state, you can hike on a 1.5 mile (2.4 km) trail of dinosaur footprints. There are 300 footprints embedded in the ground.
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