Reptiles and Water in the Desert
In Reptiles and Water in the Desert, narrator Sir David Attenborough describes how all wildlife makes the most of any opportunity to get water in the desert. The thorny devil sources water from eating ants but it can also dip its toe in puddles and collect moisture by capillary action. This video is excerpted from BBC’s Seven Worlds, One Planet, a series featuring remarkable animal behavior from all seven continents.
Lesson Express
Q: What is one way the thorny devil get water?
A: The thorny devil gets water from its food — the hundreds of ants it must eat each day.
Q: What is the trick that the thorny devil uses to absorb water?
A: The thorny devil dips its foot in a shallow puddle and absorbs the water through its capillaries.
Q: Why do the water droplets disappear so quickly?
A: The water droplets disappear because it’s so hot and they evaporate.
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