BLACKSBURG, Va. — Researchers at Virginia Tech University said they have figured out why a species of flying snake native to Asia wriggle their bodies when they glide through the air — for stability.

The researchers, who published their findings Monday in the journal Nature Physics, said they conducted indoor experiments with Chrysopelea paradisi, better known as the paradise tree snake, and developed a computer model to determine why the snakes undulate when they glide through the air.

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