It’s a fish-eat-fish world in the waters of the world’s oceans, and larvae may be the most vulnerable creatures of all. Larvae—the early form of some animals—are small, slow, and largely defenseless compared with their adult relatives. For many species, including this blenny, invisibility is the best bet for survival.

Larval Blenny Fish

It’s a fish-eat-fish world in the waters of the world’s oceans, and larvae may be the most vulnerable creatures of all. Larvae—the early form of some animals—are small, slow, and largely defenseless compared with their adult relatives. For many species, including this blenny, invisibility is the best bet for survival.
Photograph by David Liittschwager, National Geographic

Translucent Marine Animals

Sometimes it’s better to remain unseen. These nearly invisible marine animals use their natural translucence to good effect.

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