245 00|a Crash : |b a tale of two species

260 __|a Arlington, VA : |b PBS, |c 2008.

500 __|a Copyright permission expires 02/10/09.

500 __|a Title from web site description.

508 __|a Filmmaker, Allison Argo.

520 __|a This is a story of the interconnection of life, how every species is important, no matter how big or small. At the center is the humble horseshoe crab, a creature that has remained virtually unchanged for 300 million years. Its annual spring spawning produces millions of eggs that are the lifeline for a tiny bird called a red knot, which migrates 10,000 miles from South America to the Arctic each year. Scientific and medical communities have discovered that the crab also provides an indispensable testing agent for drugs and vaccines, as well as resources for human optics and burn treatment. But horseshoe crab numbers are plummeting from their new use as bait for the fishing industry, dropping by two-thirds since 1990. The precious pyramid depending on this age-old creature is about to come crashing down. 60 minutes.

521 __|a Middle school to adult.

546 __|a Closed captioned for the hearing impaired.

650 _0|a Limulus polyphemus.

650 _0|a Endangered species.

650 _0|a Food chains (Ecology).

650 _0|a Ecology.

650 _0|a Red knot.

700 1_|a Argo, Allison

710 2_|a PBS

710 2_|a WNET (Television station : New York, N.Y.)

730 0_|a Nature (Television program)

856 42|a http://www.pbs.org/wnet/nature/crash/index.html