A study led by researchers at the American Museum of Natural History presents the oldest known example in the fossil record of an evolutionary arms race. These 517-million-year-old predator-prey ...
But this is where Ahvaytum may rewrite the origin story because it originates from the North American landmass, which once formed part of Laurasia. At roughly 230 million years old, it is comparable ...
these predators were primarily known from fossils found in Russia and South Africa. Finding a specimen at such a low latitude, in southern present-day Europe, expands the understanding of their ...