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| 關鍵詞：Ancestor of |
| 概念： |
| This ancient fossil worm may be the progenitor of all animals, a new study suggests. |
| Scientists have discovered our earliest common ancestor — and the earliest ancestor of all animal life. The honor goes to a worm-like creature that lived on the ... |
| The ancestor of all animal life, including humans, was discovered in fossils from Australia. The tiny, worm-like creature had an opening in its front and one in its ... |
| A team led by researchers at UC Riversidereports finding the oldest known ancestor of most animals today, humans included. It"s quite tiny. Image credits Scott ... |
| By Ian Connellan. The ancient stone at Nilpena fossil site, about 600 kilometres north of Adelaide, South Australia, has yielded some of the world"s most ... |
| Ikaria wariootia, a wormlike creature that lived more than 555 million years ago (Ediacaran period) in what is now Australia, is the earliest bilaterian, according to ... |
| A team led by University of California, Riverside geologists has discovered the first ancestor on the family tree that contains most familiar animals today, ... |
| Scientists have discovered a fossil of our earliest ancestor: A tiny, wormlike creature that lived about 555 million years ago. |
| A worm-like creature that burrowed on the seafloor more than 500 million years ago may be key to the evolution of much of the animal kingdom. The organism ... |
| A team of geologists at UC Riverside have discovered a tiny, wormlike creature, named Ikaria wariootia that is believed to be the first ancestor on the family tree ... |