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Komodo dragons, the largest predatory lizards on Earth, have iron-coated teeth, according to a new study. Researchers also looked at other reptiles and found that tooth enamel containing iron tips ...

This story appears in the November 2017 issue of National Geographic magazine. The Komodo dragon, the largest species of lizard now alive, can grow to 10 feet long and nearly 200 pounds.

That’s about average for Komodo dragons. They are the world’s largest lizards and can reach lengths of about 10 feet. Komodo dragons have thick, leathery skin, strong claws, sharp teeth and a ...

Komodo dragons are the world's largest lizards. They can grow up to 3m (10ft) long and have razor-sharp teeth and a poisonous bite. The lizards, found on only a small group of Indonesian islands ...