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A female saola, captured in 1996.
(Image credit: © William Robichaud.)

This month marks the 20th anniversary of a spectacular day for zoologists. Two decades ago, in May 1992, scientists announced the discovery of a new species — the saola — living in the lush mountain forests that straddle the Vietnam-Laos border.

It was the first large mammal discovered since the 1930s.

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Andrea Mustain was a staff writer for Live Science from 2010 to 2012. She holds a B.S. degree from Northwestern University and an M.S. degree in broadcast journalism from Columbia University.