Their large lips and small mouths enable them to suck algae and invertebrates from river bottoms. HABITAT: Santa Ana suckers live in the shallow portions of rivers and streams. These fish exist in ...

Catfishes often have barbels ("whiskers") to help them detect food; suckers have "papilose" lips, meaning lips with enlarged bumps that allow them to detect food. There are many species of suckers in ...

The razorback sucker is a large, warm-water fish native to the Colorado River basin. Construction of more than a dozen dams throughout the lower basin has left little natural habitat for the fish and ...