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.
By Jake Buehler - 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.
By Nikk Ogasa - Animals
Whale sharks may be the world’s largest omnivores
An analysis of the sharks’ skin shows that the animals eat and digest algae.
By Freda Kreier - 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.
By Asa Stahl - 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.
By Erin Wayman - 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.
By Bruce Bower - 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.
By Bruce Bower - 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.