Apseudes ranma—a peculiar new species named after famous Japanese manga

In 2009, a research group led by Dr. Keiichi Kakui at the Faculty of Science discovered a rather unusual small crustacean neither in the deep sea nor in the distant ocean, but in a familiar location. This species is simultaneously hermaphroditic, having male and female reproductive organs in one body, and has been shown to be the first species in the world in Malacostraca—the most-species rich crustacean group—capable of "self-fertilization."

Apr 24, 2025 - 16:35
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In 2009, a research group led by Dr. Keiichi Kakui at the Faculty of Science discovered a rather unusual small crustacean neither in the deep sea nor in the distant ocean, but in a familiar location. This species is simultaneously hermaphroditic, having male and female reproductive organs in one body, and has been shown to be the first species in the world in Malacostraca—the most-species rich crustacean group—capable of "self-fertilization."