Scientists discovered evidence that North Americans tried to tame or domesticate canines 12,000 years ago.
Analyzing biomarkers in a canine fossil found at an early human campsite revealed a significant signature for salmon. Since canines didn't pursue fish as their primary prey, the preponderance of isotopes in the canine bone signaling salmon presence suggests that humans fed the canine fish.
This finding pushes back attempts to either tame or domesticate canines in North America about 2,000 years from previous estimates, according to a report in Science Advances.
