The phrase "fish fins" refers to the appendages found on the sides or back of a fish's body that help them swim and navigate in water. They are similar to our arms and legs but are adapted for life underwater. Full definition
«As fins evolve to help fish swim, so does the nervous system: Study shows that shape and mechanics of fish fins evolve in parallel with the sensory system, tuned to swimming behavior.» (sciencedaily.com)
«Key genetic event underlying fin - to - limb evolution: Study of catsharks reveals how alterations in the expression, function of certain genes in limb buds underlie evolution of fish fins to limbs.» (sciencedaily.com)
The sensory system in fish fins evolves in parallel to fin shape and mechanics, and is specifically tuned to work with the fish's swimming behavior, according to new research from the University of Chicago. (sciencedaily.com)