Sawfish, a critically endangered species. A strange-looking fish has snapped up a spot on the endangered species list. The smalltooth sawfish is the first U. marine fish to receive federal protection as an endangered species.
After the whale shark, the basking shark is the second largest living fish, and can grow up to 32 feet long. These sharks are often mistaken for plesiosaurs, a group of long-necked, predatory marine reptiles that lived at the time of the dinosaurs