Showing posts with label caves. Show all posts
Showing posts with label caves. Show all posts

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