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Pelvicachromis taeniatus

Common Aquarium Fish A More Badass Hunter Than Suspected

Pelvicachromis taeniatus may sound like an exotic name, but you've probably seen these dwarf cichlids in your local aquarium before. The fish normally dwell in African rivers, but are also popular as fish in domestic aquariums. When they're being fed floating food pellets, though, one of their most interesting evolutionary developments is going to waste. It turns out these cichlids hunt with a highly developed sense of infrared vision.

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