Earliest known animal might have inflated its body like a balloon

日期:2019-03-04 11:15:02 作者:佘鹬烊 阅读:

De Agostini Picture Library/Getty By Colin Barras A WEIRD sea creature from half a billion years ago may not be Earth’s first animal after all. We may have to rethink where Dickinsonia, pictured, sits in the tree of life after evidence emerged of an unusual feeding strategy: inflating its body like a balloon. Because this isn’t seen in any animal today, it raises questions about whether it belongs in the animal kingdom, having been put in it after fossil analysis suggested an animal-like molecular fingerprint. If Dickinsonia was an animal, it may have been a very odd one,