A Taxonomic Classification of Marine Mammals
The following chart shows the scientific classifications of all known marine mammals down to their family groups. This type of chart allows us to see how different marine mammals are related to each other.
Most of these groups are made up entirely of animals that live in seas, oceans, rivers or lakes. Some groups have members that include both marine and land (or terrestrial) species. For example, sea otters are considered marine mammals but are in the same family as skunks and weasels who are strictly land animals. Most bears are not classified as marine mammals, but polar bears are. They spend a great deal of their lives in the sea and are listed as a protected marine mammal under the Marine Mammal Protection Act of 1972, as are all of the animals on the following chart.
Classification..... Scientific Name..... Common Name
*These groups also include non—marine species.
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