How do red kangaroos keep cool during the scorching hot midday hours?

Kangaroos have a network of fine veins just beneath the surface of the skin on their forearms. They lick this area, and the saliva evaporates, cooling down the blood vessels.

Kangaroos are essentially nocturnal, being active during the night time. They are crepuscular, meaning they feed in the early morning, before it is too hot, and in the evening, as the earth cools down.

During the day, they laze around under trees, chewing their cud.