Why tree-hugger koalas are cool
That adorable sprawl on a tree could save an animal during a heat wave
![koala](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2014/06/sm_2-3_Koala_hugging_tree_SGriffiths.jpg?fit=860%2C460&ssl=1)
KOALA AIR CONDITIONING Thermal imaging (right, cooler temperatures in purple) reveals that a tree is cool enough to help a lolling koala get through a heat wave.
© Steve Griffiths