How Red Kangaroos Keep Their Cool
In How Red Kangaroos Keep Their Cool, narrator Sir David Attenborough describes how red kangaroos survive the extreme heat of the Australian desert. This video is excerpted from BBC's Planet Earth, a breathtaking documentary series that highlights the natural wonders of our planet.
Lesson Express
Q: What is the greatest danger for the red kangaroo in the desert?
A: The kangaroo can easily overheat in the middle of the day from the extreme Sun and heat.
Q: Why do the kangaroos lick their forearms?
A: The forearms have blood vessels close to the surface of the skin and the saliva cools the blood of the kangaroos when it evaporates.
Q: What other action does the kangaroos take to stay cool?
A: The kangaroos dig because the ground is cooler underneath the topsoil.
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