Violent passions -- jealous cleaner shrimp murder their rivals

The hermaphroditic cleaner shrimp Lysmata amboinensis usually live in monogamous pairs, but dark passions underlie their social structure. New research published in BioMed Central's open access journal Frontiers in Zoology shows that cleaner shrimp, in any group larger than two, viciously attack and kill each other until only a single pair remains.

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