There are many species of suckers in California and the exact shape and distribution of bumps on the lips is a key tool for identifying the different species. Equally, if not more importantly, the ...

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 ...

The white suckers he’s studying have many interesting traits and abilities. Each fish can lay thousands of eggs and, unlike some similar species, they can continue breeding for years instead of ...