На информационном ресурсе применяются рекомендательные технологии (информационные технологии предоставления информации на основе сбора, систематизации и анализа сведений, относящихся к предпочтениям пользователей сети "Интернет", находящихся на территории Российской Федерации)

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This scientist watches meat rot to decipher the Neandertal diet

Author: Laurel Hamers / Source: Science News

a composite photo showing steak before and after rotting
HIGH STEAKS Kimberly Foecke is measuring the biochemical changes of rotting meat, hoping to get a better understanding of Neandertal diets in the process. A fresh steak (left) has turned putrid and black by day 15 (right).

WASHINGTON — Kimberly Foecke has a great relationship with her local butcher.

Though she buys loads of meat, Foecke is not a chef or the owner of a small zoo. She’s a paleobiologist who studies what Neandertals ate. And that involves, in her words, “experimental putrefaction, which is a fancy way of saying, I rot meat, all day, every day.”

Scientists know Neandertals ate a lot of meat. Fossilized bones from the hominids tend to have high levels of a heavier form of nitrogen, nitrogen-15, compared with the lighter form, nitrogen-14. Nitrogen-15 is least abundant in plants, and becomes more concentrated further up the food chain because it’s harder to break down than nitrogen-14.

But exactly how much meat these hominids ate — and what else was in their diet — is somewhat controversial. Evidence such as tooth scrapings suggests that Neandertals also ate a variety of plants. But the nitrogen-15 measurements point to “an unreasonably huge amount of meat” in the diet, says Foecke, a researcher at George Washington University in Washington, D.C. Those levels tend to be even higher than what’s seen in top carnivores like hyenas, which…

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