Nov 6, 2025 · Marine mammals are warm-blooded vertebrates (animals with a backbone) that bear live young and nourish them with milk as land mammals do, but that spend most or all of their lives in the …

Aug 21, 2008 · Marine animals can become infected with zoonotic microbes when they ingest contaminated water while filtering the water for food, or by eating infected prey, such as plankton, …

Aug 5, 2025 · Aquaculture is the farming in fresh and saltwater environments of aquatic animals or plants principally for food. Fish, mollusks, crustaceans, and kelp are a few examples.

Apr 15, 2008 · The release of sulfur and nitrogen into the atmosphere by power plants and agricultural activities is making seawater more acidic, especially in coastal waters, according to a study …

Oct 7, 2021 · Living fossils are among the oldest animals in the ocean. They are rare survivors of ancient lineages and resemble fossils dating back hundreds of millions of years. Many scientists …

Jun 1, 2016 · In 2010, a research team garnered headlines when it published evidence of finding the first animals living in oxygen-free conditions at the bottom of the sea. But a new study led by Woods …

Jun 11, 2025 · What are sharks? Sharks are elasmobranchs, a group of animals that includes rays and skates, whose members have a skeleton made of cartilage, rather than bone, and, unlike most other …

Jul 29, 2022 · Jellyfish and other zooplankton are animals that live all or part of their life suspended and drifting in fresh or salt water, rarely come in contact with hard surfaces.

Aug 6, 2013 · Fish are aquatic animals that were among the first vertebrates (animals with a backbone) to evolve on Earth. They are divided into two broad groups: teleosts, which have a bony skeleton and …

Oct 15, 2004 · Predators—using light to hunt Not surprisingly, aquatic animals possess visual systems that are specially adapted to the nature and properties of light underwater. Animals living near well-lit …