That includes the likely extinction of the lizards Wiens has studied for 10 years — the population of Yarrow's spiny lizards found in the Mule Mountains of southern Arizona. "There's a lot of ...

They are also known to eat grasshoppers, beetles, and spiders. Despite their spiky features, short-horned lizards are preyed upon by a number of creatures, including hawks, roadrunners ...

A hunter holds a captured iguana in Pingtung, Taiwan. The iguana population has exploded since the spikey-backed giant lizards were introduced from Central and South America more than 20 years ago ...