Bloody Thirsty // In the dry season, when seeds, insects and water are scarce on remote Wolf Island, Galapagos finches turn into vampires. They target seabirds, mainly Nazca boobies and peck at the base of the flight feathers until the blood begins to fl… ift.tt/2PYzgmU

An Arabian Sea snake surfaces to breathe after hunting small fish on the seabed of the Gulf of Oman 🇴🇲 This endemic snake’s undulating body reminds me of the elegant Arabic script that sadly resisted all my attempts to learn to read. I spent many months … ift.tt/2O2gl7Q

Long before I started work on my @natgeo Galapagos story I envisioned making a photograph that would juxtapose a marine iguana with a school of fish. Transforming the scene lodged in my mind into reality took many hours, over many days, following a schoo… ift.tt/2I9eA50

Sponsored by @burtsbees // Entering into a deep relationship with nature has not only made my life more meaningful, but has also strengthened my commitment to telling stories that drive positive conservation change. As a National Geographic photographer,… ift.tt/2kPu6eh

Pelican Plunge // Former shark fisherman Gabino Zarabia now earns his living through ecotourism in Baja California’s Magdalena Bay. He specializes in taking people to dive with sharks, watch gray whales and photograph Pacific pelicans. Shot on assignment… ift.tt/2mjzPJF

The waters around the northern Galápagos Islands of Wolf and Darwin are one of few places in the world where mature whale sharks make regular appearances. Silky sharks are also abundant in these productive waters, but are dwarfed by these 30 + foot giant… ift.tt/2n36aVx

During Christopher Columbus’ Caribbean voyage of 1494 green sea turtles were said to have been so numerous that his ships came close to running aground on them. Apparently, his crew could walk to shore on the backs of turtles without getting wet. Scienti… ift.tt/32LflJ0

A flatback sea turtle kicks up sand while digging a nest on Crab Island, off Australia’s northeast coast. This 200-pound sea turtle is endemic to Australia and Crab Island is this species largest rookery. Unlike most other globally important sea turtle n… ift.tt/2rFyhMt

This photograph is taken from high up in the air and these are not tiny sea turtle hatchlings! Each individual leaving bulldozer like tracks in the sand is a almost 3 feet (1m) long adult female coming ashore to nest. Costa Rica's arribadas—mass arrivals… ift.tt/2Ogxolq

To successfully mate a male sea turtle has to cling onto the female's shell (from behind) with specially adapted claws on their front flippers. Getting into this position however can be tricky when bobbing like a cork on the ocean’s surface. In the India… ift.tt/2NX6LTz

At dawn a gigantic leatherback turtle disguises her nest; using her front flippers to spread sand over a wide area, she camouflages the exact location of the egg chamber. Grande Riviere, along the north coast of Trinidad, has the highest nesting densitie… ift.tt/336uqVO

The shallow banks of the Bahamas are important foraging grounds for juvenile and sub-adult green turtles from across the Caribbean. Green turtles were traditionally fished in the Bahamas until 2009, when new fisheries regulations were introduced. These g… ift.tt/2OEkSw0

Blacktip reef sharks patrol Aldabra atoll’s reef flats, looking for any fish that made the mistake of remaining out in the open. When this shiver of sharks is on the prowl they supremely rule the reef flat. Shot on assignment for National Geographic in Seychelles wo… ift.tt/33ish9L

With a weight of up to 9lbs and a leg span of 3 feet Coconut crabs are the largest terrestrial crabs in the world. They are also called robber crabs after their habit of "stealing" and dragging novel items into their lairs. I found all items shown in thi… ift.tt/2TAp1nm

A reef manta ray breaks the surface while feeding on plankton in Hanifaru Bay, Maldives. The current was pumping hard, pushing both me and this manta across the reef flat. It took all the strength I could muster not to get sucked into the surf zone, but … ift.tt/2Im5YrM

It might not look like much, BUT this is one of the most important photographs of my career! I made this split level image of a blacktip shark at South Africa’s Aliwal shoal in 2005, but only entered it into the Wildlife Photographer of the Year Competit… ift.tt/3blsfSS

South Africa has been my home for 21 years and I will fittingly spend the next 21 days of our nationwide lockdown at my studio in the mountains near Cape Town. Despite photographing many of @natgeo assignments overseas, South Africa continuous to inspire… ift.tt/33PcCQU

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Applications are open for the Ocean Storytelling Photography Grants, aimed at finding & supporting a new & diverse generation of conservation storytellers. Led by @natgeo photographer Thomas P. Peschak, with Kathy Moran & Jennifer Samuel from @Natgeo. APPLY NOW. saveourseas.com/ocean-storytel…

I spend most of my time photographing wildlife in the oceans, so it was challenging to photograph a story about a glacier in the Swiss Alps last summer. On assignment for @nikondach & @nikoneurope Go and check out the behind the scenes video youtu.be/hlnP2W_9Trc