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In open, blue ocean water, a tuna fish (at left) rubs the back half of its body against the tail of a shark, facing the camera at center

Life

Tuna use sharks as back scratchers despite risk of being eaten

Large yellowfin tuna fish prefer to scrape against sharks over members of their own species, possibly to pry off parasites

News

aerial view of a Bull Shark (Carcharhinus leucas). reefs of the Sea of Cortez, Pacific ocean. Cabo Pulmo, Baja California Sur, Mexico. The world's aquarium.; Shutterstock ID 623521508; purchase_order: 10 Sept 2022 issue; job: Photo; client: NS; other:

Life

Two new books about sharks reveal how and why we should conserve them

Culture

Fossil megalodon teeth

Life

Megalodon may have been higher up the food chain than any modern shark

News

Megalodon

Life

Megalodon vs great white: New clues to demise of world’s largest shark

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Underwater view of someone paddling on a surfboard

Life

Sharks may bite humans because they mistake us for seals and sea lions

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Spiral intestine

Life

Sharks' spiral-shaped intestines resemble a Nikola Tesla invention

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shark

Life

Sharks in the Gulf of Mexico hunt in shifts to avoid each other

News

Amazing surfing sharks image shows how currents help them save energy

Life

Amazing surfing sharks image shows how currents help them save energy

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shark

Life

Sharks were almost wiped out in an extinction 19 million years ago

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Bizarre 'manta shark' slowly cruised the oceans 93 million years ago

Life

Bizarre 'manta shark' slowly cruised the oceans 93 million years ago

A Mexican fossil belongs to a shark that lived more than 90 million years ago and had wings like a manta ray, which may have helped it swim in place while feeding on plankton

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Environment

Sea turtles, sharks and king penguins swim in mysterious circles

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Life

Stunning picture shows a baby lemon shark learning the ropes

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Life

Playing With Sharks review: The amazing woman who helped film Jaws

Culture

Environment

Sharks at unprecedented risk of extinction after 71 per cent decline

News