Switchblade-like defensive system redraws family tree of stonefishes

A new study details for the first time evolution of a ‘lachrymal saber’ unique to stonefishes — a group of rare and elaborately dangerous fishes inhabiting Indo-Pacific coastal waters. The new finding rewrites scientific understanding of relationships among several groups of fishes and reveals a previously unknown defensive strategy — also, it likely will fuel a few nightmares.
Latest Science News — ScienceDaily

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