Blind cavefish ditches circadian rhythm to save energy

From ABC News in Science, 25 September 2014: The eyeless, cave-dwelling form of the Mexican tetra fish (Astyanax mexicanus) has surrendered its circadian rhythm for the sake of saving energy in its pitch-black habitat. The absence of a day/night cycle in the cave-dweller’s metabolism has resulted in a 27 per cent saving in energy use, Continue reading Blind cavefish ditches circadian rhythm to save energy