Q:

How many animals live in the ocean?

A:

Quick Answer

Scientists believe that there are over 1 million species of animals and plants living in the ocean. Some speculate that there are 9 million species that have not yet been discovered.

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Full Answer

Animals that live in the ocean come in many different shapes, colors and sizes and live in even the coldest and deepest environments in the ocean. For example, tubeworms live in hot sea vents, which are one of the most extreme environments in the ocean. The largest animal in the ocean and in the world is the blue whale, which lives side by side with one of the tiniest marine organisms, plankton.

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Related Questions

  • Q:

    What kind of plants live in the ocean?

    A:

    There are thousands of different species of ocean plant life, including phytoplankton, algae, kelp and seagrasses. There are over 130,000 species of algae alone, but the most common forms are red and brown algae. Red algae is what is commonly seen on coral reefs, and brown algae is considered the most complex form of algae.

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  • Q:

    Which omnivores live in the ocean?

    A:

    Omnivores that live in the ocean include sea turtles, manatee, dolphins, opaleye, saltwater crabs, lobsters, sea otters, sharks and whales. Deep-sea omnivores include copepods and some species of squid and octopus. Among sea birds, several species of seagull are omnivorous.

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  • Q:

    Where can I find a list of ocean animals from A to Z?

    A:

    Oceana's website has a list of ocean animals, from A to Z, as part of their marine animal encyclopedia. A list of bodies of water and habitats can also be found on the Oceana website.

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  • Q:

    What animals live in the oceanic zone?

    A:

    Animal life from the topmost to the lowest oceanic zone ranges from sharks and other fish to deep-sea squid and echinoderms such as the sea pig and sea cucumber. The oceanic or pelagic zone has every form of animal life that lives away from the coastal regions.

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