Only 10 vaquita porpoises survive, but species may not be doomed

The vaquita porpoise, the world's smallest marine mammal, is on the brink of extinction, with 10 or fewer still living in Mexico's Gulf of California, their sole habitat. But a genetic analysis by a team of UCLA biologists ...

Humans disrupting 66 million-year-old feature of ecosystems

The U-shaped relationship between diet and size in modern land mammals could also stand for "universal," says a new study, which has found that the relationship spans at least 66 million years and a range of vertebrate animal ...

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