Interspecies sex

Added: Price Mckinsey - Date: 08.09.2021 23:51 - Views: 27782 - Clicks: 7222

A wide variety of mammoth species interspecies sex roamed North America, from the pony-sized pygmy mammoth to the huge, hairless Columbian mammoth. A new study suggests these different mammoths were open to diverse and exotic mates. The study, based on analysis of DNA from 67 specimens of species other than woolly mammoths, uncovers new insights about how mammoths evolved and calls into question whether they were really separate species. When most people think of mammoths, they generally think of the woolly mammoth, a hairy elephant-like animal that roamed the tundra.

But in fact, North America was once home to many other kinds of mammoths. Most DNA studies up until now have been on woolly mammoths, as many of their remains and DNA have been well preserved in the permafrost. Poinar and his team wanted to learn more about how the populations of other kinds of mammoths changed over time. While the DNA in those more southern species isn't as well preserved, new techniques developed in Poinar's lab allow DNA to be extracted and identified even when there is very little of it. While Columbian, woolly, and pygmy mammoths all looked different, lived in different environments and entered North America at different times, their DNA interspecies sex surprisingly similar — especially the Columbian and woolly mammoths.

Many animals also showed some Columbian and woolly traits, while others showed something halfway in between — that was particularly the case for Jefferson's mammoth. The one least closely related to the others was the pygmy mammoth, suggesting that it was most closely related to the first mammoths to enter North America, the steppe mammoths.

The suggest that despite all the differences that evolved between the woolly mammoth and the Columbian mammoth during the million years or so that they were separated, "when they met back up, they could still interbreed," Poinar said — and weren't really separate species in a biological sense. That said, there's no doubt the animals were very different and adapted to very different environments. You take a woolly and throw him down into the Everglades and he's sweating to death.

They also had a very different response to climate change, he added — woolly mammoths survived climatic change much better than Columbian mammoths, which went extinct earlier. Pseudonyms will no longer be permitted. By submitting a comment, you accept that CBC has the right to reproduce and publish that comment in whole or in part, in any manner CBC chooses. Please note that CBC does not endorse the opinions expressed in comments. Interspecies sex on this story are moderated according to our Submission Guidelines. Comments are welcome while open.

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Interspecies sex

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Mammoths had lots of 'interspecies' sex, study shows