Smithsonian marine biologist Ross Robertson suspects that the regal demoiselle hitched a ride to the Gulf of Mexico on an oil rig. Its outstanding success in its new habitat raises questions about its impact in the Gulf.
Coral reef fish often see a very different seascape that humans do. Using the evolutionary laboratory created by the Isthmus of Panama, Michele Pierotti is learning exactly how they view their underwater world.
A new paper in Science shows that big female fish are disproportionately important to maintaining populations. The research suggests that protection of large, reproductive females is essential to sustaining viable fish stocks.
New ocean zone is home to many new species of reef fish
