Common Side-blotched Lizard

What it is

The common side-blotched lizard (Uta stansburiana) is a species of side-blotched lizard found on the Pacific Coast of North America. It is notable for having a unique form of polymorphism wherein each of the three different male morphs utilizes a different strategy in acquiring mates. The three morphs compete against each other following a pattern of rock, paper, scissors, where one morph has advantages over another but is outcompeted by the third.

Where and when to find it

Habitat

Found across the western United States, in deserts, dry grasslands, and rocky areas.

How to find it

Look for them on sunny rocks or logs. They are quick, but if you stay still, they might pop out to bask in the sun.

Best time of day

Daytime, especially when the sun is warm, from spring through fall.

How it lives

What it eats

Many kinds of insects, spiders, and even other small lizards.

What eats it

Snakes, roadrunners, hawks, and bigger lizards.

Worth knowing

• Males have different throat colors (orange, blue, or yellow) that indicate their social roles.
• They can shed their tails if caught by a predator, to escape!
• Females can lay several clutches of eggs in one season.
• They do push-ups to show off to other lizards.
• The 'side-blotch' is often on their side, under their armpit.
• They are very common and important lizards in their habitats.

Why it matters

These lizards help control insect populations and are a food source for many predators. They are a big part of the food web in their dry habitats.