科学与环境

Animals may have evolved vastly earlier than fossil evidence suggests

来源: Phys.org - latest science and technology news stories · 发布于

Animals may have evolved vastly earlier than fossil evidence suggests
来源: Phys.org - latest science and technology news stories

The earliest animals may have evolved hundreds of millions of years before their first unmistakable fossils appear in the fossil record, according to a new study led by the University of Oxford. The findings, published in Science Advances, suggest animals may have originated deep

The earliest animals may have evolved hundreds of millions of years before their first unmistakable fossils appear in the fossil record, according to a new study led by the University of Oxford. The findings, published in Science Advances, suggest animals may have originated deep in the Neoproterozoic Era, even before some of the most extreme ice ages in Earth's history.

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Ancient sea levels reveal when the Earth's poles went wandering
科学与环境

Ancient sea levels reveal when the Earth's poles went wandering

Earth's poles do not always stay in the same place. For example, a region once near the North Pole can end up near the equator, and an area near the equator can shift up toward the pole. This is known as true polar wander (TPW), and it's when Earth's crust and mantle shift togeth

Phys.org - latest science and technology news stories ·

Q&A: Why are red squirrels endangered—and can we save them?
科学与环境

Q&A: Why are red squirrels endangered—and can we save them?

The red squirrel was once a familiar sight across Britain. Today, it has disappeared from much of its former range. Dr. Kat Hamill, senior lecturer in zoology at Nottingham Trent University, explains what has happened to one of Britain's most recognizable native mammals—and wheth

Phys.org - latest science and technology news stories ·