A flock of geese takes to the air from nearby Tule Lake Wildlife Refuge.

Jackrabbits are a common sight, usually in the morning and evening hours.

Pikas, in the rabbit family, are usually found high up on the rocky slopes of mountains, but find lava tube collapses just as "cool."

A red fox trots past the park headquarters. Gray fox and coyotes are also found in the park.

This adult rubber boa, only one foot long, is the only species of boa in the United States.

Western fence lizards are some of the most common reptiles in the park.