Video: amphibians

Part A: Differences between frogs and toads:

Frogs:
moist and smooth skin
jumps

Toads:
dry skin
no warts!
poison glands behind eyes
walk

Both the toad and the frog pulsate to get air to their lungs

Amphibians are good indicators to the health of the environment because their skin if very porous and absorbent. Chemicals and pollutants will be very harmful to their skin and the amphibian itself. Due to increasing polluted waters, amphibian populations are decreasing. Water pollution continues to be a problem in need of being addressed. The waters should be tested and treated if having issues. With hopefully would stop the amphibian population from declining so drastically.

picture: http://img2.etsystatic.com/000/0/5251561/il_fullxfull.304438030.jpg