A large Argentine black and white tegu was spotted by hikers in Joseph D. Grant County Park in Santa Clara County.

Santa Clara County Parks is asking for the public’s help finding an Argentine black and white tegu — a lizard that can grow to the size on an ironing board — recently seen wandering Joseph D.

This primitive, 85-million-year-old marine reptile was a fierce predator, measuring 12 meters in length. Unlike any known ...

One of the many reasons why the leopard gecko is so well-loved is its delightfully goofy, ever-present grin. Here are 10 ...