Search Results for: Shark

Animals

These devices use an electric field to scare sharks from fishing hooks

SharkGuard gadgets work by harnessing sharks’ ability to detect electric fields. That could save the animals’ lives, a study suggests.

Oceans

Sharks face rising odds of extinction even as other big fish populations recover

Over the last 70 years, large ocean fishes like tuna and marlin have been recovering from overfishing. But sharks continue to decline toward extinction.

Ecosystems

Tiger sharks helped discover the world’s largest seagrass prairie

Instrument-equipped sharks went where divers couldn’t to survey the Bahama Banks seagrass ecosystem.

Animals

Whale sharks may be the world’s largest omnivores

An analysis of the sharks’ skin shows that the animals eat and digest algae.

Paleontology

Great white sharks may have helped drive megalodons to extinction

Analyzing zinc levels in shark teeth hints that megalodons and great whites competed with each other for food.

Paleontology

Megatooth sharks may have been higher on the food chain than any ocean animal ever

Some megalodons and their ancestors were the ultimate apex predators, outeating all known marine animals, researchers report.

Paleontology

Ancient fish fossils highlight the strangeness of our vertebrate ancestors

New fossils are revealing the earliest jawed vertebrates — a group that encompasses 99 percent of all living vertebrates on Earth, including humans.

Animals

A hammerhead shark baby boom near Florida hints at a historic nursery

Finding an endangered shark nursery in a vast ocean is like finding a needle in a haystack. But that’s just what scientists did near Miami.

Science & Society

Here are 7 new science museums and exhibitions to visit in 2023

The Grand Egyptian Museum is slated to open, as well as new exhibitions dedicated to space travel, the Galápagos Islands and more.

Anthropology

A partial skeleton reveals the world’s oldest known shark attack

An ancient shark bite victim died quickly, before his body was recovered and buried, a new study finds.

Anthropology

A skeleton from Peru vies for the title of oldest known shark attack victim

The 6,000-year-old remains of a teen with a missing leg and tell-tale bite marks came to light after news of a 3,000-year-old victim in Japan surfaced.

Paleontology

Something mysteriously wiped out about 90 percent of sharks 19 million years ago

Deep sediments beneath the Pacific Ocean revealed a mystery: a massive shark die-off with no obvious cause.