Chuckwalla

1
Chuckwalla
Photo by Evan Baker
Body size increases with altitude why?
2
Desert tortoise
Adaptation aestivation
3
Environmental Sex Determination (ESD)in Desert
Tortoise

• Egg incubation temperatures
• 26-30 degrees C all males
• 31-33 degrees C all females

4
Desert kangaroo rat
Courtesy CalPhotos
Two adaptations to high temperatures
5
The Tardigrade (aka Water Bear)

• The Movie