Tuesday, March 4, 2008

Carlsbad Caverns

The bat population of Carlsbad Caverns has declined drastically over the years -- from an estimated 8.7 million in 1936 to about 200,00 in 1973. No one knows exactly why, but it is assumed that chemical pesticides are primarily to blame.

Photo: Carlsbad Caversn, National Park Service Photo, Public Domain

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