<p><br> Scales help protect this lizard from harsh weather and predators. The marine iguana <i>(Amblyrhynchus cristatus)</i> is unique to the Galápagos Islands. Despite its scaly shield, the species is still considered vulnerable to extinction because of non-native rats, feral cats, and dogs that feed on iguana eggs and young.</p>

Marine Iguana


Scales help protect this lizard from harsh weather and predators. The marine iguana (Amblyrhynchus cristatus) is unique to the Galápagos Islands. Despite its scaly shield, the species is still considered vulnerable to extinction because of non-native rats, feral cats, and dogs that feed on iguana eggs and young.

Photograph by Gina Martin, National Geographic

Patterns in Nature: Scales and Feathers

See photos of scales and feathers, from National Geographic.

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