Sunday, November 1, 2015

Humans have created a new top predator that is taking over the Northeast

Humans are not newcomers when it comes to messing around with nature. While we haven't created Frankenstein's monster yet, what we do transforms the natural world.
One recent example is the creation of the coywolf — a hybrid of the coyote and the wolf that is also known as the Eastern coyote. According to a new article from The Economist, their population seems to have reached more than a million.


These animals have a completely new genetic makeup: Their genes are about one-quarter wolf DNA and two-thirds coyote DNA; the rest is from domesticated dogs. A 2013 study suggests this dog DNA is mostly from a few specific breeds, including German Shepherds and Doberman Pincers.
Human activity likely played a role in the species' creation. As humans cut down wolves' forest homes and hunted down their populations, the lack of available partners for wolves led them to search elsewhere for mates, leading them to coyotes and dogs.
Scientists think this intermixing began with wild wolves in southern Ontario about a century or two ago.
19020659228_39049c7ba9_oCharles Moreau PhotographyCharles Moreau caught this coywolf pup in Alberta, Canada.
The coywolves' success is astounding scientists. According to The Economist:
The animal’s range has encompassed America’s entire north-east, urban areas included, for at least a decade, and is continuing to expand in the south-east following coywolves’ arrival there half a century ago. This is astonishing. Purebred coyotes never managed to establish themselves east of the prairies. Wolves were killed off in eastern forests long ago. But by combining their DNA, the two have given rise to an animal that is able to spread into a vast and otherwise uninhabitable territory.

Read the rest Here

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