The animals in this group live in a variety of habitats ranging from coral reefs and kelp forests to rivers, streams, and the open ocean. Another is that fish are very old on the evolutionary scale.

There are more than 800 known freshwater fish species in North America alone. Worldwide, the number is over 10,000 species. Some species of freshwater fish, such as salmon and trout, …

Fish are vertebrates (vertebrates have backbones) that live in water. They breathe using special organs called gills.

Apr 3, 2014 · A classic April Fools' Day prank in France is to stick a paper fish onto an unsuspecting passerby.

The jellylike creatures pulse along on ocean currents and are abundant in cold and warm ocean water, in deep water, and along coastlines. But despite their name, jellyfish aren't actually …

This Month in Photo of the Day: The Power of Photography. Sharp bellied and nearly flat, razorfish swim in perfect formation as they rush for cover among the branches of a red sea whip.

Jan 24, 2018 · The small, colorful, sedentary fish are not built for long-distance swimming, so it's likely the newly discovered population is genetically different from the Hobart population.

Fish. Explore More. Magazine. history. Science. Space. U.S. States. Weird But True! Subscribe. menu. Quiz; Big bear. By Karina Schink. To bulk up for winter, brown bears start eating …

Sep 16, 2016 · This Popular Aquarium Fish Might Vanish From the Wild. The survival of a spectacular coral fish from Indonesia may depend on a decision made in South Africa this month.

Mar 29, 2019 · Whales and fish are often an important food source for indigenous people living in the Arctic, but commercial fishing has been banned in much of the Arctic Ocean.