• The Historic Entrance of Mammoth Cave

    Mammoth Cave

    National Park Kentucky

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Fish

Black Crappie
Black Crappie
 
Nature and Science

Eyeless Cave Fish

Perhaps the most unusual fish in Mammoth Cave National Park are those cave-adapted species known generally as eyeless fish. They have adapted to lightless, low-energy environments by ceasing to grow eye structures and unnecessary skin pigments. Surface fish include most game fish found in the eastern United States, including bluegill, crappie, largemouth bass, muskellunge, yellow perch, striped bass, gar, and catfish, among others.

A Gallery of Common Green River Fishes

 
Bluegill

Bluegill

 
White and Black Crappie

White and Black Crappie

 
Yellow Perch

Yellow Perch

 
Channel Catfish

Channel Catfish

 
Black Bullhead Catfish

Bullhead Catfish

 
Largemouth Bass

Largemouth Bass

 
Smallmouth Bass

Smallmouth Bass

 
Northern Pike

Northern Pike

Did You Know?

Tuberculosis Hut in Mammoth Cave

In 1841, cave owner Dr. John Croghan believed the cave air might cure his patients suffering from tuberculosis. He brought 16 patients into Mammoth Cave that winter and housed them in stone and wood huts. After some perished, they left the cave, for of course the cave air offered no cure.