Summary
About 160 million years ago, a tiny shrew-like creature climbed trees -- all the better to find bugs to eat and avoid being eaten or squashed by dinosaurs.
In an article scheduled for publication today in the journal Nature, a team of scientists led by a researcher at the Carnegie Museum of Natural History describes how this animal, called Juramaia sinensis, became the earliest-known fossil of a group that evolved to include all mammals, including humans, that give birth with a placenta.See the full content of this document
Extract
Fossil Shows 'Little Guy Won the Race,' Study Finds
"You don't have to be a great, giant dinosaur in order to be significant," said Zhe-Xi Luo, curator of vertebr...
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