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There are millions of different types of living things on Earth. In order to keep track of them all, scientists put living things into groups based on characteristics that they have that are the same.

Researchers have elucidated the evolutionary origins of placodes and neural crests, which are defining features of vertebrates, through lineage tracing and genetic analysis in Ciona intestinalis, a ...

An amphioxus in the Daniel Medeiros lab is seen with most of its body burrowed into sand and its mouth exposed, as it waits for food to drift by. Photo by David Jandzik. The findings suggest that the ...