ALEXIS ROSENFELD / SCIENCE PHOTO LIBRARY ALEXIS ROSENFELD / SCIENCE PHOTO LIBRARY
Mudskipper (Periopthalmus sp.) lying partly submerged in a mangrove swamp. Mudskippers are a bizarre group of fish that can travel freely on land. They absorb oxygen through their skin and water-filled gill chambers, and propel themselves using their strong pectoral fins. They can even climb trees using a sucker formed from their modified pelvic fin. Their prominent eyes provide a wide visual range, helping them find their prey of insects and small crustaceans. Photographed in Cabo Delgado province, Mozambique.
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