hat the former species likely crawled across marine sediments in search of food, as in modern nereids, whereas the latter one may already have been capable of swimming in the water column, suggesting
nbsp; 프리다이빙의 한 종목인 수평잠영을 연습하는 모습.
nculans dated to about 518 million years ago.The newly identified fossils are only a few millimeters long but display clear segmentation along their bodies, a defining characteristic of annelids. Each
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