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Blue spiny lizard

Sceloporus serrifer cyanogenys

Blue spiny lizard

Blue spiny lizards are closely related to iguanas. They get the name from their scales which are large, pointy and ridged. They use these spiny scales for defence. Blue spiny lizards are blue on their shoulders but males are also blue on their back, chin, throat and stomach and they show off their throats and underbellies to win a mate.

Blue spiny lizards are active during the day. When they are not hunting for food they spend their time hiding from predators and sheltering from the heat.

Our blue spiny lizard can be found in the reptile house. It shares its home with our pancake tortoises.

Animal class


Diet - Insectivore
The diet consists mainly of invertebrates.

The body length of this lizard can be up to 38 centimetres, including the tail.

Blue spiny lizards are found in deserts, shrublands and rocky hillsides from Texas to Mexico.

Conservation status
The IUCN does not consider the blue spiny lizard to be facing extinction in the near future.

There are no major threats to the blue spiny lizard. In Mexico there is a small problem with agriculture and over grazing with cattle.

Current population
It is not certain as to how many blue spiny lizards live in the wild. It is thought that there could possibly be around 100,000.

Zoo population
There are 300 blue spiny lizards in zoos across the world.