Losing Their Habitat
Claudia Atticot
Three of
the four amphibian species native to Yellowstone National Park may
be in danger of disappearing forever. The culprit, say
researchers at Stanford
University in California, is global warming.
Amphibians
are cold-blooded animals with backbones that live both in water and
on land. Frogs, toads and salamanders are amphibians. They
lay their jellylike
eggs in water.
Years of
drought and high temperatures have dried up many of Yellowstone's
ponds. In addition, wetlands are drying up earlier in the
spring. "Breeding
habitats are disappearing. Ponds are drying up before baby
amphibians can
develop fully," researcher Sarah McMenamin told TFK.
Time For Kids November 14, 2008
Vol. #14 Iss. #10 |