8,274 results
8,274 results for: Fish
- Animals
Odd head of seahorse cloaks its sneak attacks
Head shape creates hydrodynamic fake-out for stealth hunting.
- Life
Parenthood: Male sharks need not apply
A second case of a virgin shark birth suggests some female sharks may be able to reproduce without males.
- Life
How Tiktaalik got its neck
The oldest fossil with a neck, Tiktaalik roseae, shows how animals developed a head for living on land.
- Animals
Spider males good for mating, food
Expectant mothers, including spiders, need to eat well. For Mediterranean tarantulas, a male suitor tastes just fine.
- Life
Salmon study: Dammed or not
Columbia River salmon have troubles all right, but dams may no longer top the list.
- Life
Schools make fish smarter
A study of consensus decision making shows that sticklebacks make wider choices in groups of three or more.
- Health & Medicine
Ginkgo biloba fails drug test
The herbal supplement Ginkgo biloba fails to prevent Alzheimer’s disease or other dementia, a large trial finds.
- Earth
Antidepressants make for sad fish
Fish may suffer substantially from even brief encounters with antidepressants, which wastewater releases into river water.
- Math
The influence of influence in Prisoner’s Dilemma
Cooperation wins out over betrayal when successful prisoners recruit followers.
- Animals
Dolphins wield tools of the sea
A long-term study of dolphins living off Australia’s coast finds that a small number of them, mostly females, frequently use sea sponges to forage for fish on the ocean floor.
- Life
Rock-climbing fish caught in evolution tug-of-war
Tall is good for dodging danger, but short is better for climbing waterfalls.
- Archaeology
Shipwrecks harbor evidence of ancient sophistication
Research on shipwrecks from two ancient, submerged harbors shows that frame-based shipbuilding emerged surprisingly early and then became more sophisticated within a few hundred years.
