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Lava Lizard

Microlophus

Description:

Microlophus is a genus of Tropidurid lizards. There are twenty two recognized species in the genus, and nine of these are endemic to the Galápagos Islands where they are popularly known as lava lizards (they are sometimes placed in Tropidurus instead). The remaining, which often are called Pacific iguanas, are found in the Andes and along the Pacific coast of Chile, Peru, and Ecuador. The distribution of the lava lizards and their variations in shape, colour and behaviour show the phenomenon of adaptive radiation so typical of the inhabitants of this archipelago. One species occurs on all the central and western islands, which were perhaps connected during periods of lower sea levels, while one species each occurs on six other more peripheral islands. All have most likely evolved from a single ancestral species. However, as usual for Tropiduridae they can change their colour individually to some extent, and members of the same species occurring in different habitats also show colour differences. Thus animals living mainly on dark lava are darker than ones which live in lighter, sandy environments.

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AlbertKang
Spotted by
AlbertKang

Parroquia Bella Vista, Provincia de Galápagos, Ecuador

Spotted on May 6, 2012
Submitted on Apr 18, 2014

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