812 results
812 results for: Sharks
- Life
Hormones give lantern sharks the glow
In a first, a study shows that bioluminescence can be controlled by slow-acting hormones, not rapid-fire nerve cells.
- Life
Poached hammerhead fins traced to endangered populations
Mapping populations with DNA comparisons offers possible tool for conservation of hammerhead sharks.
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Book Review: Shark: In Peril in the Sea by David Owen
Review by Sid Perkins.
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- Space
The Real Story of Risk: Adventures in a Hazardous World by Glenn Croston
A biologist explores why humans are poor at judging risk — fearing rare shark attacks, for example, more than common heart attacks. Prometheus, 2012, 276 p., $19
- Humans
Nobelists advise budding scientists
Laureates share unconventional wisdom with young investigators at Intel ISEF 2011.
- Tech
Hooking fish, not endangered turtles
A tuna fisherman has taken it upon himself to make the seas safer for sea turtles, animals that are threatened or endangered with extinction worldwide. He’s designed a new hook that he says will make bait unavailable to marine birds and turtles until long after it’s sunk well below the range where these animals venture to eat.
- Animals
Epidemic of skin lesions reported in reef fish
A British-Australian research team has just found coral trout living on the south side of the Great Barrier Reef sporting dark skin raised, scablike, brown-black growths. Although the authors believe they’ve stumbled onto an epidemic of melanoma — a type of skin cancer — other experts have their doubts. Strong ones.
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