Darkening waters are slowing fish growth and shifting species balance, favoring fish that rely less on vision. Ecosystems and ...

At a local spillway, we catch an impressive variety of nine different fish species in one trip.

North Carolina State University. "City fish evolve different body forms than country fish." ScienceDaily. ScienceDaily, 27 April 2018. <www.sciencedaily.com / releases / 2018 / 04 / 180427100312.htm>.

Many fish species evolved parts of their fins into sharp, spiny, needle-like elements -- called fin spines -- that function to protect the fish against predators. Such spines have evolved ...