Deserts Planet Earth : Season 1 Episode 5
TV-PG BBC One 50m int(0)
Aired: April 2nd, 2006 @ 9:00 PM EST on BBC One
Despite the lack of rain, deserts are the most varied of our ecosystems. In fact, about thirty percent of the earth's land surface is covered in desert. Explore the unique conditions present in deserts as well as the survival mechanisms developed by the animals that inhabit them.