The evolution from wild animals to beloved, domesticated pets required dogs to develop certain traits guaranteed to charm humans.
Dogs
are famously known as man’s best friend, but it hasn’t always been that way.
Although the exact timeline isn’t known, experts believe wolves began
their path to domestication somewhere between 15,000 and 40,000 years ago.
In
the time since, these once-wild animals have become beloved house pets by
developing certain traits that engender a mutually loving, loyal, and
beneficial relationship with our species. From their expressive “puppy eyes” to
their affectionate behavior, here are five fascinating ways dogs adapted to
endear themselves to humans.