Throughout the novel and evolutionary times, dogs have searched for snug places to beds down for nightfall. If they were given the opportunity in the wilderness, domesticated canines would never elect to sleep on frozen land when there are other more hospitable options. For example, dogs often look for heaps of leaves to lie on top of as opposed to the uncomfortably icy ground.

Fact

The thighbone is the longest bone in the body.

This measures about 18 inches or 46 cm long. However, this is only so in an adult’s fully grown skeleton. The shortest bone in the body is in the ear which is shorter than your average grain of rice.