805 results
805 results for: Sharks
- Animals
Why great white shark sightings are good news
Conservation measures implemented in the 1990s halted a decline in great white sharks in the Atlantic.
- Animals
Cougars may provide a net benefit to humans
Cougars have disappeared from the eastern United States. If they returned, they’d kill deer, preventing many car crashes, scientists find.
- Climate
Sharks could serve as ocean watchdogs
Tagged with sensors, toothy fish gather weather and climate data in remote Pacific waters.
- Computing
Barrel jellyfish may hunt with new kind of math
Barrel jellyfish use a new type of mathematical movement pattern to forage for food, a new study suggests.
- Animals
Just enough fat is good for an elephant seal
Fat affects the buoyancy of marine mammals. As elephant seals get fatter, they can spend less energy swimming and more time foraging, a new study finds.
- Animals
Piggyback rides and other crocodile fun
We don’t know the playful side of crocodiles perhaps only because we haven’t looked.
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- Animals
Deepwater dweller is first known warm-hearted fish
The opah, a deep-diving fish, can keep much of its body warmer than its surroundings, making it similar to warm-blooded birds and mammals.
- Genetics
Elephant shark genome small and slow to evolve
The animals have the smallest genome of non-bony fishes and the slowest-evolving genes among vertebrates, a study suggests.
- Animals
The mystery of the missing fish heads
When scientists opened up the stomachs of shortfin mako sharks, they found that nearly all of the digesting fish had no heads or tails.
- Animals
How the ghost shark lost its stomach
The lack of a digestive organ in fish and other animals is linked to genetics.
- Animals
Ten real-life Halloween horrors in the natural world
Vampires and witches are nothing compared to mind-controlling parasites, nose ticks and antibiotic-resistant superbugs.
