Cave2020-NJIT-FishHeads (IMAGE)

New Jersey Institute of Technology

Cave2020-NJIT-FishHeads

Caption

Contrast between two distantly-related species of transparent knifefish neighboring each other in Central Brazil's Upper Tocantins river basin, in the state of Goiás. The surface-dwelling fish Eigenmannia trilineata (left) inhabits the Rio da Lapa at the mouth of the São Vicente II Cave where the blind cavefish Eigenmannia vicentespelea (right) has adapted to life without light over tens of thousands of years.

Credit

NJIT

Usage Restrictions

None

License

Licensed content

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.