Alex Mustard / California sea lion (Zalophus californianus) pups in an underwater cave. Los Islotes, La Paz, Baja California Sur, Mexico. Sea of Cortez, Gulf of California, East Pacific Ocean.
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Alex Mustard / Whale shark (Rhincodon typus) close to the camera with a golden trevally fish (Gnathanodon speciosus) and outline of another whale shark behind , in the plankton-rich green waters of La Paz bay, Baja...
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Alex Mustard / RF - Silhouette of a California sea lion (Zalophus californianus) swimming through an underwater cave. Los Islotes, La Paz, Baja California Sur, Mexico. Sea of Cortez, Gulf of California, East Pacific...
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Alex Mustard / California sea lion (Zalophus californianus) uses a Panamic cushion star (Pentaceraster cumingi) as a toy. The sealions pick up the starfish and then drop them and chase after them as they sink. Los I...
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Alex Mustard / Schools of Pacific creolefish (Cephalopholis colonus) and Panamic sergeant major (Abudefduf troschelii) swimming through sun beams inside an underwater cavern. Los Islotes, La Paz, Baja California Sur...
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Alex Mustard / California sea lion (Zalophus californianus) adult female swimming through sunbeams in an underwater cave. Los Isotes, La Paz, Mexico. Sea of Cortez, East Pacific Ocean.
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Alex Mustard,Alex Mustard / A signal blenny (Emblemaria hypacanthus) displays its showy dorsal fin as it extends out of its tube home. La Paz, Mexico. Sea Of Cortez, East Pacific Ocean.
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Mark Carwardine / Whale shark (Rhincodon typus) aerial view of juvenile with two people swimming alongside, La Paz Bay, Sea of Cortez (Gulf of California), Baja California, Mexico, March 2009
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Mark Carwardine / Whale shark (Rhincodon typus) aerial view of juvenile with two people swimming alongside, La Paz Bay, Sea of Cortez (Gulf of California), Baja California, Mexico, March 2009
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Roland Seitre / Girl watching Violet Sabrewing Hummingbird (Campylopterus hemileucurus) feeding on flower. Captive. La Paz Waterfall Gardens, Poas, Costa Rica. Model released
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Alex Mustard / A young California sealion (Zalophus californianus) swims in a shallow pool. Los Isotes, La Paz, Mexico. Sea of Cortez, East Pacific Ocean.
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Alex Mustard / A split level view of a bull California sealion (Zalophus californianus) swimming beneath Los Islotes sealion colony. La Paz, Mexico. Sea of Cortez, East Pacific Ocean.