Razorback Sucker Found in Grand Canyon

Biologists recently caught a razorback sucker in Grand Canyon National Park. It was the first one seen in 20 years and it is believed the fish swam upstream 50 miles from Lake Mead. The endangered fish was once common in the Colorado River and its tributaries, but populations plummeted with the construction of dams. Sucker populations are now nearly limited to reservoirs on the Lower Colorado, and its survival depends on re-stocking programs. That's why the discovery of the fish in the Grand Canyon was such a surprise.