Sharks

New research examining Mexican fishermen’s catches suggests the Gulf of California may be an overlooked great white shark nursery or pupping ground.

The Gulf of California May Be an Overlooked Home for Great White Sharks

The existence of an artisanal fishery in the region shows that these key predators may be more than just occasional visitors

An illustration of the ancient shark Edestus heinrichi preying on a fish. Many ancient sharks had different jaws than modern sharks.

These Prehistoric Sharks Had Jaws Shaped Like Circular Saws and Sawtoothed Scissors

CT scans and visualization tools are now allowing scientists to recreate the weird cartilaginous structures of ancient predators

The eagle shark's long, slender side fins are one of its "most striking features," says first author Romain Vullo.

Discovery of a 95-Million-Year-Old 'Eagle Shark' Fossil Makes Waves

The ancient creature likely used its six-foot-wide wingspan to move with 'underwater flight'

The researchers found that 3D tracking tags picked up circling movements in various animals including, king penguins, tiger sharks, whale sharks and a Cuvier's beaked whale.

Researchers Are Investigating Why Marine Animals Swim in Perplexing Circles

Sea creatures may exhibit the spiraling behavior to navigate the ocean, for mating rituals, or to track prey

Photos of the kitefin shark glowing in the dark.

Nearly Six-Foot-Long Glowing Shark Discovered in Deep Sea Off New Zealand

The kitefin shark is one of three species of glowing sharks described in a new paper

Both sides of a shark tooth from Rio do Meio, an artifact which may have been used as a cutting tool. Archaeologists think it was bound to a wooden shaft by cord, strung through the drilled holes.

Why Did Ancient Indigenous Groups in Brazil Hunt Sharks?

New studies show that shark meat may have constituted half of their diet and that the beasts' teeth were used as arrow tips and razor blades

An oceanic whitetip shark swimming in the open ocean. This species was common in the 1970s but its population has since declined by 98 percent, according to a new study.

Oceanic Sharks and Rays Have Declined 70% Since 1970

Fishing fleets have indiscriminately slaughtered sharks for decades and a new study catalogues the environmental damage done

Warming waters cause the sharks to hatch early and underdeveloped, making them vulnerable to predation.

Ocean Warming Threatens Baby Sharks in the Great Barrier Reef

Researchers found the hatchlings of the egg-laying epaulette shark are weakened by rising sea temperatures

The basking shark's scientific name, Cetorhinus maximus, approximately translates to "big-nosed marine monster."

Twenty-Six-Foot-Long Basking Shark Washes Up on Maine Beach

Though often mistaken for great whites, these sea creatures are filter feeders and gentle giants of the sea

One specimen of the ultra-black fish species Anoplogaster cornuta.

Ten Scientific Discoveries From 2020 That May Lead to New Inventions

From soaring snakes to surfing suckerfish, nature is an endless source of inspiration

This discovery offers a new theory to how the world's most ferocious predator went extinct more than 3 million years ago.

Megalodons, the Ocean's Most Ferocious Prehistoric Predators, Raised Their Young in Nurseries

The fossils shed light on how these sharks were raised and what led to their ultimate demise

A remarkable abundance of wildlife reside on or around the territory's four islands, including endangered yellow-nosed albatross, sevengill sharks, rockhopper penguins and 11 species of whales and dolphins.

A Tiny Atlantic Island Just Protected a Giant, Pristine Stretch of the Ocean

Tristan da Cunha fully protected 90 percent of its waters, safeguarding its vibrant biodiversity

The fin of a great white shark being tagged by researchers off the coast of Southern California.

Record Number of Great Whites Tagged in Southern California

Researchers working in Southern California tagged 38 sharks this year, more than triple last year’s total

A swordfish photographed underwater southwest of Tampa, Florida.

Shark Stabbed Through the Heart and a Swordfish Is to Blame

Recent research documents the latest instance of a strange but not unheard-of phenomenon in which swordfish impale sharks with their bills

Researchers with OCEARCH caught a 17-foot-long great white shark on the morning of October 2.

Researchers Catch and Tag 17-Foot 'Matriarch of the Sea,' a 50-Year-Old Great White Shark

The OCEARCH team named the shark Nukumi, the Mi'kmaq people’s word for 'grandmother'

The squalene industry kills around 3 million sharks each year, and if squalene is used in a vaccine to treat everyone in the world, up to half a million sharks will be killed.

500,000 Sharks Could Be Killed in the Race to Produce a Covid-19 Vaccine

Vaccine developers seek a compound called squalene produced in shark livers

A female megalodon model, based on a set of teeth discovered in the Bone Valley Formation in Florida, hangs in The Smithsonian National Museum of Natural History.

How Cannibalism in the Womb May Have Made Megalodon a Titanic Terror

A new analysis of shark body size offers clues as to why the 50-foot-long prehistoric shark grew so large

Some groups stuck together for four years.

Grey Reef Sharks Hunt With the Same Group for Years—but Don't Call Them Friends

They're more like reef proximity associates

Not much is known about the megamouth, which was first observed by scientists in 1976. A new specimen (not pictured above) has traveled to the Smithsonian’s National Museum of Natural History, where researchers will study it to learn more about its behavior and life cycle.

Rare Megamouth Shark Arrives at the Smithsonian

Studying and eventually preserving the megamouth will help researchers learn more about the puzzling species

A white tip reef shark swims above the reef near the Gambier Islands, French Polynesia in 2018

Reef Sharks Are in Serious Danger of Extinction

Researchers found that the sharks are 'functionally extinct' in 20 percent of coral reefs surveyed

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