Animal ID Challenge - Marine Iguana, Galapagos Land Iguana, or Komodo Dragon

Photo © Dennis Hinaris / iStockphoto.

In today's animal identification challenge, we have a rather unique reptile. This creature is the largest of all lizards. Adults of the species can grow to lengths of 3 m and can weigh as much as 165 kg. It is the top carnivore in the ecosystem it inhabits and feeds on carion as well as a variety of large mammals such as deer, wild boar, horses, and water buffalo. Its mouth is equipped with a long, yellow, deeply-forked tongue and sharp serrated teeth. Until recently, scientists thought this lizard's saliva was laden with pathogenic bacteria that infected and immobilized its prey. But now, there is clear evidence that this lizard is venomous and innoculates its prey with a potent cocktail of toxins that cause debilitating pain and shock.

This species is an island-dwelling creature whose prefered habitats include tropical savannah forests, open lowland habitat, beaches, and dry riverbeds.

Your task is to identify which of the following three lizards this species belongs to: marine iguana, Galapagos land iguana, or Komodo dragon.

After you have cast your vote in this Animal ID Challenge, be sure to check your answer here.