Photos show what cave divers discovered when they swam inside an iceberg the size of Jamaica. Today, it's gone.

Tech Insider : Environment
A scuba diver swimming inside an ice cave
Paul Heinerth rises out of a cave inside a fragment of iceberg B15, which calved from Antarctica in the spring of 2000.

Jill Heinerth

Underwater photos from the World Nature Photography Awards reveal stunning scenes beneath the world's oceans

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Young humpback whale in Tonga.
Location: Tonga.

Philip Hamilton/World Nature Photography Awards

14 breathtaking wildlife photos from the World Nature Photography Awards

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Two gannets under the water. Shetland Islands.
Two gannets under the water in the Shetland Islands.

Tracey Lund/World Nature Photography Awards

10 hilarious unseen photos from the Comedy Wildlife Photography Awards

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Two bears appear to converse with each other
"Bear Jokes" by Sidra Monreal Burshteyn.

Sidra Monreal Burshteyn/Comedy Wildlife Awards

25 award-winning photos from the Wildlife Photographer of the Year contest show the beauty and fragility of animals in the wild

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An Adélie penguin approaches an emperor penguin and its chick during feeding time in Antarctica's Atka Bay.
Location: Atka Bay, Antarctica.

Stefan Christmann/Wildlife Photographer of the Year

Check out this huge Jurassic sea-monster skull that just went on display

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A top shot shows Sir David Attenborough standing next to the fossil of the pliosaur, which is about seven feet long.
The skull of the pliosaur is seen here next to David Attenborough, BBC presenter, who is presenting a documentary about the find.

BBC Studios

The best landscape photos of the year

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El Chalten, Patagonia.
El Chalten, Patagonia.

Matt Meisenheimer/The 10th International Landscape Photographer of the Year

National Geographic unveiled its Pictures of the Year. Here are 7 of the most stunning wildlife photos.

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Field specialists examine a North Island brown kiwi.
Field specialists examine a North Island brown kiwi.

Robin Hammond/National Geographic

Australia says it's going to shoot wild horses from helicopters in a bid to cull 14,000 of them

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Brumbies running in the snow.
Wild horses are called brumbies in Australia, and can often be seen as pests.

Fairfax Media via Getty Images/Fairfax Media via Getty Images via Getty Images

Penguins arguing, a sleepy polar bear, and a happy turtle are in the running for wildlife photo of the year, and you can vote on them

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A turtle lets a dragonfly balance on its face instead of immediately eating it, it's mouth open in what looks like a gleeful grin.
The photographer described this shot as "a moment of peaceful coexistence."

Tzahi Finkelstein / Wildlife Photographer of the Year

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