GEORGETTE DOUWMA / SCIENCE PHOTO LIBRARY GEORGETTE DOUWMA / SCIENCE PHOTO LIBRARY
Convict blenny (Pholidichthys leucotaenia) school of juveniles forming a ball under a pier. Despite its name, this fish is not a blenny. The adult spends its life in a burrow, hence the name. The juveniles shelter in the burrows at night Photographed off Papua New Guinea.
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