Tuesday, May 7, 2019

Crabs, lobsters and shrimp now have a family tree dating 500 million years

"Researchers have for the first time traced the roots of crabs, lobsters and shrimp to create the family tree of crustaceans people love to eat.
The tree shows the 450-million-year evolution of these 10-legged decapods, when lobsters and crabs each diversified from a single evolutionary origin. Groups of shrimp evolved earlier.
The findings are part of a massive family tree project where researchers resolved the deep evolutionary relationships between crabs, shrimp and lobsters. The discoveries, made by analyzing more than 400 genes from 94 species could also inform conservation policies to ensure their longevity..."
Crabs, lobster origin

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