KOMODO DRAGON
Do you know what is the largest lizard? This lizard is called komodo. It lives in the scrub and woodland of a few Indonesian islands.

Komodo dragon is the world's heaviest lizard, weighing 150 pounds or more. The largest Komodo ever measured was more than 10 feet (3 meters) long and weighed 366 pounds (166 kg) but the average size of komodo in the wild is about 8 feet (2.5 meters) long and 200 pounds (91 kg)

Komodo has gray scaly skin, a pointed snout, powerful limbs and a muscular tail. They use their keen sense of smell to locate decaying animal remains from several miles away. They also hunt other lizards as well as large mammals and are sometimes cannibalistic.

The Komodo dragon's teeth are almost completely covered by its gums. When it feeds, the gums bleed, creating an ideal culture for virulent bacteria. The bacteria that live in the Komodo dragon's saliva causes septicemia, or blood poisoning, in its victims. A dragon will bite its prey, then follow it until the animal is too weak to carry on.

This lizard species is threatened by hunting, loss of prey species and habitat loss.

Source:
http://animal.discovery.com/reptiles/komodo-dragon/
http://animals.howstuffworks.com/animal-facts/komodo-bite.htm