For now, " we are not sure what gene is inactivating cave fish ( eye genes ) " in untreated fish, Yamamoto said in a phone interview Wednesday.
22.
Oxford University researcher Theresa Burt de Perera, for example, reported that the blind Mexican cave fish is able to interpret water pressure changes to construct a detailed mental map of its surroundings.
23.
But the blind cave fish retained some basic structural components of eyes . ( Likewise, modern snakes, which are legless, retain useless pelvic girdles that once supported their ancestors'limbs .)
24.
Due to the recent discovery of the presence of endangered Ozark cave fish in the spring, the city is working closely with Missouri Department of Conservation and the U . S . Fish and Wildlife Service.
25.
In karst anchialine pools and the caves these may be connected to, the fauna are diverse and include : crustaceans including remipedia and copepods, and among the vertebrates are several species of blind cave fish and eels.
26.
In other words, all animals are randomly susceptible to bad mutations, and since cave fish don't need their eyes to survive, those fish born with poor or no eyesight don't get weeded out.
27.
To their amazement, the blind cave fish grew fully restored eyes, each of which included " a distinct pupil, cornea and iris, " according to a summary of their work released by the University of Maryland.
28.
Here he continued to work on evolutionary changes in development between tailess and tailed ascidian species and began research to develop the cave fish Astyanax mexicanus as a model system to study the evolutionary basis of eye and pigment degeneration in cave animals.
29.
Other than the endangered bats, the cave contains cave fish ( " Typhlichthys subterraneus " ), cave crayfish, banded sculpins, cave salamanders ( " Eurycea lucifuga " ), and northern slimy salamanders ( " Plethodon glutinosus " ).
30.
"But if Dallo's Law is violated in the case of Mexican cave fish, it would only be a misdemeanour, because the genetic vestiges of eyesight are still there, so it's easy for the fish to go back and regain their eyes,"
