The findings add to growing evidence that dogs and people have undergone what is called convergent evolution: They've adapted to new environments by independently evolving similar traits. 13 окт. 2017 г.
What kind of evolution is dog?
The dog, Canis familiaris, is a direct descendent of the gray wolf, Canis lupus: In other words, dogs as we know them are domesticated wolves. Not only their behavior changed; domestic dogs are different in form from wolves, mainly smaller and with shorter muzzles and smaller teeth.
Did dogs and humans evolved together?
Early signs of domestication date back to 33,000 years ago and unambiguously domesticated dogs are common in the archaeological record beginning 15,000 years ago. The pairing makes for a striking case in coevolution — no other species has been so thoroughly integrated into human society.
How are dogs and humans related?
Dogs. Humans and dogs share 84 percent of their DNA, which again, makes them useful animals to study human disease processes. Researchers are particularly interested in specific diseases that affect both dogs and humans.
Do humans and dogs share a common ancestor?
Sometimes, humans and dogs shared ancestral origins. For example, dogs and humans that lived around 5,000 years ago in Sweden both originated in the Near East. Perhaps, as agriculture expanded westward, some canine companions tagged along.
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