Hot Bother: Ground squirrels taunt in infrared | Science News



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Hot Bother: Ground squirrels taunt in infrared

2:43pm, June 23, 2004

Ground squirrels are the first animals reported to broadcast an infrared signal, and the message seems to be "Nyah, nyah."

When adult California ground squirrels discover a lurking rattlesnake, they often harass it, says Aaron Rundus of the University of California, Davis. They dash into its striking range, kick sand at the snake, nip at its tail, and whip their own tails back and forth in a display called flagging (SN: 10/9/99, p. 237). A snake subjected to such vexations sometimes slithers off to lur

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