Environmental News Network - Study Finds That Ocean Cooling Over Millennia Led to Larger Fish enn.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from enn.com Daily Mail and Mail on Sunday newspapers.
Dahiana Arcila is studying how fish, like pufferfish, boxfish, ocean sunfish and other relatives have evolved to develop their distinct physical traits.
Coastal News Today | World - Study Focuses on Evolutionary Determinism and Convergence in Marine Fishes coastalnewstoday.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from coastalnewstoday.com Daily Mail and Mail on Sunday newspapers.
Credit: Lutjanus viridis photographed by R. Betancur, Mosquera & Seymour, Galapagos, 10 Feb. 2017.
The stickleback is a well-studied system in freshwater lakes, but the evolution of convergent morphotypes that occupy different positions in the water column in marine environments is less clear. An international group of scientists led by researchers at the University of Oklahoma decided to test the extent to which independent transitions from bottom to midwater habitats in marine fish species from different oceanic basins resulted in the recurrent evolution of body shape morphologies, comparable to those documented in sticklebacks.
The motivation for this study was based on the book, Wonderful Life (ca. 1989), by noted Harvard University paleontologist and evolutionary biologist Stephen J. Gould.