813 results
813 results for: Sharks
- Animals
Great spots for white sharks
The great white sharks of the eastern Pacific may be genetically isolated from the world's other white sharks, and tagging data reveal that the animals stick to specific routes and destinations.
- Life
Elephant kin liked the water
Moeritherium, ancient relatives of modern elephants, may have spent much of their time in lakes, rivers or swamps.
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- Life
Sawfish don’t saw
Spiked snouts whack prey to the bottom, helping the predator better get its mouth around dinner.
- Life
Albatross forage with fractal-like flight
New data offer support for a modified mathematical pattern in birds’ hunting behavior.
- Ecosystems
New protection for much-dogged shark
To rebuild northeastern U.S. populations of the spiny dogfish, the first fishing quotas on this species limit the harvest to roughly 10 percent of the 1998 haul.
- Physics
Balloon bursts give clue to fast cracks
A casual observation about the edges of popped balloons may have led researchers to previously unknown features of the most common and least understood types of fractures.
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Copy Crab: DNA confirms that crab forms have several origins
New genetic evidence suggests that crabs aren't all close relatives and their characteristic shape evolved independently on numerous occasions.
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Baby talk goes to the dogs, and cats
Acoustic differences in the "baby talk" that mothers use with their infants and with family pets support the notion that adults use this form of speech to teach language skills to their babies.
- Ecosystems
No Way to Make Soup—Thirty-two tons of contraband shark fins seized on the high seas
Something looked suspicious. This former swordfishing vessel, out of Honolulu, was clearly heavy with cargo when discovered by U.S. law-enforcement officials 350 miles off of Acapulco, on Aug. 13. A boarding team found no fishing–just shark fins. However, under a new federal law, transporting fins collected by another fishing vessel constitutes illegal “fishing.” US Coast […]
- Ecosystems
State of U.S. Agro-ecosystems
About one-quarter of the United States’ land cover, excluding Alaska, is farmed–some 430 million to 500 million acres. A massive new project has just assessed this and other food-producing environments, such as coastal waters, fresh waters, and rangelands, to tally factors contributing to health. Released on Sept. 24, it indicates that most ecosystems are undergoing […]
- Earth
Mercurial Effects of Fish-Rich Diets
In the spring of 2000, one of Jane M. Hightower’s patients had been concerned about hair loss, so the internist referred the woman to a specialist in her building. That dermatologist probed the woman’s medical history but could find no explanation. That is, until she suddenly recalled a radio broadcast about mercury poisoning in people […]
