Fish are water-dwelling vertebrates. These aquatic animals breathe by absorbing oxygen from the water using gills. Almost all fish are cold-blooded, and some have scales to protect their bodies. Most species lay eggs—in fact, certain species are able to lay millions of eggs at a time.
Some fish prefer saltwater or freshwater, while others have the ability to survive in both. Common threats to fish in and around the United States include overfishing, habitat degradation, and poor water conditions. Climate change is also a threat, particularly for coldwater fish, which are extremely sensitive to changes in water temperature. When streams get too warm, the fish can experience slower growth rates, lower oxygen levels in the water, and greater susceptibility to poisons, parasites, and disease.
A new report highlights how Swampbuster provisions have protected wetlands for three decades, and how Congress could make these provisions even stronger.Read More
We're engaging communities and empowering individuals to create habitat in the places where they live, work, learn, play, and worship.Read More
Read a wildlife photographer's story of the declining Hawaiian i`iwi and the lobelia flower, which depend on one another to survive.Read More
Tell your members of Congress to save America's vulnerable wildlife by supporting the Recovering America's Wildlife Act.Read More
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