These fish are also known as the fish with the big brain—literally. Flowerhorn cichlids are instantly recognizable thanks to their large forehead hump, but their personality is just as prominent.

White flowerhorn cichlid. Image by lienyuan lee, CC BY 3.0 , via Wikimedia Commons. Among the diverse community within Africa’s Lake Malawi, some cichlid fish have evolved an ingenious form of mimicry ...

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