alligator gar fish |
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| navigate by keyword : animal fish underwater aquarium reef wildlife invertebrate alligator gar fresh water american largest freshwater north america fossil existence cretaceous years primitive living fossils record traces group back early 100 million referred |
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| An alligator gar fish. They are among the largest freshwater fish in north America. The fossil record traces its group's existence back to the Early Cretaceous over 100 million years ago. Often referred to as "primitive fish" or "living fossils". |
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