How Did Humans and Dogs Become Friends ... A study of the fossil teeth of early Homo from Georgia dating back 1.77 million years reveals a prolonged childhood despite a small brain and an ...

After all, like humans, dogs do have a circadian rhythm, aka the body’s built-in 24-hour clock that ... Left: A Siberian Laika sled dog lay asleep in the early morning covered by the nights snowfall.

Managing the dogs' exercise and controlling their ... Next, the researchers examined studies of humans with severe, early onset obesity where single genetic changes were suspected to cause weight ...