New techniques in Ancient DNA analyzes are providing increasingly tantalizing details about prehistory, including some of the latest scientific discoveries from last week.
I’m Katie Hunt, replacing Ashley Strickland, who is on vacation.
In a new study, scientists sequenced the genomes of 13 of the bodies and found that they were descendants of hunter-gatherers from the ice age.
While this population was genetically isolated, the clothing of the mummies and the food in their unusual tombs suggested that they interacted extensively with other groups living in the region at the same time. But the ships in which they were buried remain a mystery.
Change of climate
Ancient DNA that contains secrets from the past is not only found in old bones.
All animals, including humans, shed genetic material when they lose their hair, shed dead skin cells, pee, poop and bleeding. This genetic material seeps into the ground, where it can remain for tens, if not hundreds, of thousands of years, when conditions are right.
To track down the whereabouts of woolly mammoths and other giant ice age creatures, scientists took soil samples from locations across the Arctic, extracting DNA from permafrost and sediment. in an ambitious study.
We currently know more than 4,000 of these exoplanets. However, all identified exoplanets rotate within the Milky Way, our local galaxy, and are less than 3,000 light years away.
Now, NASA’s Chandra X-ray Observatory may have detected signs of the first transiting planet from a star outside the Milky Way. Located in the Whirlpool Galaxy, the possible planet would be about 28 million light years away.
This might just be the weirdest cute animal you’ve ever heard of. Dicynodonts lived from about 270 million to 201 million years ago, before the rise of the dinosaurs. From rat to elephant size, these creatures had a turtle-shaped head and fangs that protruded from the upper jaw.
Surprisingly, there wasn’t a single time in their evolutionary history when tusks evolved, the researchers learned, but the variations shared a combination of characteristics found in mammals today.
If you’ve ever caught the beat of Queen’s “We Will Rock You,” you have more in common with the lemurs of Madagascar than you might think.
Discovering this was not easy: the researchers spent years tracking indris to capture recordings of them singing in the jungle pavilion. The results could expand our understanding of the origins of rhythmic skills.
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