Danionella dracula

The scientific name of the vampire fish is "Danionella dracula", a small carp found in Myanmar. It is estimated that it has been bred on Earth for nearly 100 million years. Because of its sharp teeth and terrifying appearance, it is similar to the vampire in European legends, so it is nicknamed "vampire fish".

The vampire fish was first discovered in April 2007, but it was not confirmed as a new species until 2009. Scientists believe that the vampire fish is one of the most amazing vertebrates discovered in the past 10 years. The most peculiar thing is that it is the only species of carp fish with fangs.

Dr. Ralph Blitz, a zoologist at the Natural Science Museum in London, was delighted with the discovery. He said: "This fish is the most amazing vertebrate discovered in the past 10 years." He said, "The teeth of the 'vampire fish' are the most exciting part, because the other 3,700 members of the Cyprinidae have no teeth. Their teeth disappeared 50 million years ago." In fact, the ancestor of the vampire fish, like other Cyprinidae fish, lost its teeth forever 50 million years ago. However, 30 million years ago, vampire fish gradually evolved the protruding bone structure that looks like fangs. Vampire fish do not use this peculiar tooth structure for hunting, but use it in the battle for territory, as a weapon to fight with the same sex when jealous. The lower jaw of the vampire fish can open a relatively large angle, 45° to 60° with the main body of the body. Therefore, male vampire fish use these super long teeth to "intimidate" each other in the competition for courtship, or fight each other.

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