dog genome
Ancient genomes heat up dog domestication debate
Results point to a single origin for modern canines and push back the timing by thousands of years.

Researchers chasing the origin of modern dogs find that canines were domesticated once, between 20,000 and 40,000 years ago.

The results, published on 18 July in Nature Communications1, push back against a controversial 2016 study2 that suggested dogs were domesticated twice. The latest analysis also add weight to previous research that moves the timing of domestication back as far as 40,000 years ago.  

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World’s first IVF puppies

Seven beagle-mix puppies have been born with the help of IVF, making them the first ever dogs to be born using this treatment. The pups are being called “seven bundles of scientific joy” by many, and it’s easy to see why. Researchers at Cornell transferred 19 embryos into a female host dog and then delivered the dogs by cesarean.