About This Quiz
The oceans are not just home to what you'd consider a lot of different species of animals; they're home to a baffling number of species of animals. Over 228,000 species have been identified in the world's oceans, and it's believed that there may be up to 2 million more that have not been identified yet. That includes everything from the smallest microscopic plankton life-forms to blue whales, which are not just the largest animals in the ocean, but also the largest animals on earth and the largest animals that have ever existed in the entire planet's history. Clearly, if you're looking to find a great variety of life, the ocean is the place to go.
Lucky for you, you don't need to be a marine biologist to be able to identify all of the species that we've listed here, though. Some of these are as common as salmon and hammerhead sharks, while some may be of the more unusual leafy seadragon or vampire squid variety. If you think you're up to the task of identifying them all, then you best head out to open sea with this quiz and see how many of our A to Z creatures from the ocean you can name.
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