Sharks, skates and rays are oddities among fish: They have appendages growing out of the gill arches, small cradles of bones that supports the gills. This anatomical peculiarity has led to the ...

The paired limbs of humans, and before that the paired fins of fish, evolved from the transformation of gill arches in early fish, scientists say, presenting genetic evidence for this theory. Sharks, ...

A widely debated topic in biology and fisheries sciences is the role of oxygen in the growth of fish and other water-breathing animals. According to new research, developmental changes in individual ...

As you sit at your desk and chew your morning muffin, consider the complicated interlocking structure of your jaw. How did you manage to evolve such a thing? What you’re eating through is essentially ...

WOODS HOLE, Mass. - Sharks, skates, and rays are oddities among the fish: They have appendages growing out of the gill arch, a small cradle of bones that supports the gills. This anatomical ...