1,410 results
1,410 results for: Whales
- Math
A Grove of Evolutionary Trees
"Trees of life" show patterns of evolutionary descent, and they fit together mathematically to form an abstract forest.
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When Mice Fly: Bat DNA leads to longer limbs in mouse embryos
Mice with a stretch of bat DNA grow longer limbs, a possible step in the evolutionary path to wings.
- Ecosystems
Saving Whales the Easy Way? Less lobstering could mean fewer deaths
A provocative proposal suggests that the U.S. lobster fleet in the Gulf of Maine could reduce the number of traps, maintain its profits, and improve life for endangered right whales.
- Ecosystems
Sea Change: People have affected what penguins eat
Adélie penguins in Antarctica significantly changed their eating habits about 200 years ago, after whaling and other human activities transformed the ocean ecosystem.
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- Earth
Warning: Slow down for whales
To protect a major population of right whales, the U.S. government is proposing periodic go-slow rules for big ships passing through the animals' migration routes.
- Humans
Letters from the December 23 & 30, 2006, issue of Science News
Playing dead is a lively topic I am amazed that “Why Play Dead?” (SN: 10/28/06, p. 280) concluded that “Scientists have a long way to go to explain why” prey animals play dead. As a veterinarian, I have learned that there are separate centers in the brain dealing with predatory behavior and with hunger. The […]
- Animals
Den Mothers: Bears shift dens as ice deteriorates
As Arctic ice has dwindled, pregnant polar bears in northern Alaska have become more likely to dig their birthing dens on land or nearshore ice than on floating masses of sea ice.
- Ecosystems
Tortoise Genes and Island Beings
Geneticists and conservation biologists are joining forces to untangle the evolutionary history of giant Galápagos tortoises and to safeguard the animals' future.
- Humans
From the August 14, 1937, issue
Trees inspire a new kind of architectural support, a university sophomore finds the first mosasaur fossil west of the Rockies, and an oilman scoffs at fears over increasing atmospheric carbon dioxide due to industrial activity.
- Paleontology
Twice upon a Time
New fossil finds suggest that the complex features of mammals originated earlier than previously thought and might even have evolved independently in different mammalian lineages.
- Earth
Oil Booms: Whales don’t avoid noise of seismic exploration
Field tests in the Gulf of Mexico suggest that sperm whales there don't swim away from boats conducting seismic surveys of the seafloor, but the noise generated by such activity may be subtly affecting the whales' feeding behavior. With video.
