Small, silvery-colored fish with 6 to 9 dark bands on its sides.

This tiny fish grows to a full average length of only 2.5 inches.

Pupfish develop quickly, sometimes reaching full maturity within 2 to 3 months.

Average lifespan is 6 to 9 months, some survive more than one year.

Pupfish feed on brown and green algae.

During winter months, when the water is cold, they become dormant, burrowing in the muddy bottom of their habitat.

Adapted to live in temperatures up to 105 degrees

Listed as Endangered under the US Endangered Species Act.

Non-native fish predators and competitors and pesticides have drifted into pupfish habitat from nearby agricultural areas