Page 12 - Demo

12Dogs have wet nose to collect more of the tiny droplets to smell chemicals in the air. That is why, dogs are used as detectives by the police.The silver torch cactus is wooly and grows flowers.Thisisaveryunusualcactusasitprefers cold temperatures. It lives in the high mountains of Bolivia and Argentina, and can stand frosts of up to %u201310%u00b0C.Woodpeckers cannot make sound as they don%u2019t have any vocal cords. Drumming trees with their beaks play an important role in their communication with each other. Pecking of trees for the whole day does not cause them any pain or discomfort.Lizards are born dumb and remain so, till they die. They don%u2019t have vocal cords. They communicate only through body language. However, the Gecko Lizard is the only lizard that has vocal cords.Let us read some unusual facts about our environment.