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Tag: "warm" at biology news

Tracking sperm whales and jumbo squid

...as to swim to breathe. So when it gets into really warm water, I think it gets out pretty quickly. These deep dives, therefore, may have some kind of recovery function. We think the stress may be temperature-related, but another factor could be oxygen. It’s possible they could be negatively affected by lo...

Tropical forests -- Earth's air conditioner

...he planet. In contrast, forests in snowy areas can warm the Earth, because their dark canopy absorbs sunlight that would otherwise be reflected back to space by a bright white covering of snow. The work simulates the effects of large-scale deforestation, and accounts for the positive and negative clima...

Tundra disappearing at rapid rate

...y hot, dry summers—followed by successive years of warm temperatures favourable for seedling growth and survival," said Danby. Widespread changes to treelines could have significant impacts, says Danby. As tundra habitats are lost and fragmented, species and habitats are forced to move upwards as well...

Flies don't buzz about aimlessly!

...ocate and blissfully drown in your wine glass on a warm summer evening, especially since its flight path seems to be so erratic? Mark Frye at the University of California and Andy Reynolds at Rothamsted Research in the United Kingdom have been pondering this very question. Fruit flies explore their envi...

Corals that can fight global warming may one day help fragile reefs

... are related to lethal coral reef epidemics. The warm temperatures that have been occurring worldwide as...mple, in 2005, the Caribbean experienced unusually warm weather and a spate of coral deaths caused directly by temperature stress and indirectly by opportun...

MIT's ocean model captures diversity of underwater forests

...prochlorococcus that are extremely abundant in the warm mid-latitude Atlantic and Pacific oceans. Chisholm said this is the first major change in the way scientists approach ocean models in many years. She believes it will serve to break down disciplinary barriers between the physical and biological o...

Egyptians, not Greeks were true fathers of medicine

...efacients to stimulate blood flow and poultices to warm and soothe. They used celery and saffron for rheumatism, which are currently topics of pharmaceutical research, and pomegranate was used to eradicate tapeworms, a remedy that remained in clinical use until 50 years ago. "Many of the ancient remed...

Scripps research team sheds light on long-sought cold sensation gene

...sensation. "TRPM8 acts as a gate," says Dhaka, "At warm temperature it remains closed, but opens when exposed to cool temperature." The TRPM8-deficient mice did not lose their ability to feel pain in response to extreme cold, as evidenced by responses similar to wild type mice when exposed to -1° C co...

Detecting cold, feeling pain: Study reveals why menthol feels fresh

...cally engineered mice did not discriminate between warm and cold surfaces until the temperature dropped to extremes. "It's been known for years that menthol and related cooling agents evoke the psychophysical sensation of cold – somehow by interacting with the aspect of the sensory nervous system that'...

Studies to find better ways to preserve human eggs, ovarian tissue under way

... seconds. “We developed a solution where we can warm up tissue in under five minutes and still get no ice formation,” says Dr. Song, adding that ice formation aside, it is difficult to thaw rock-solid tissue at room temperature in a matter of seconds, meaning the current approach could have extremely l...

Dirty snow may warm Arctic as much as greenhouse gases

...here and they fall onto snow, the net effect is we warm the polar latitudes,” said Charlie Zender, associate professor of Earth system science at UCI and co-author of the study. “Dark soot can heat up quickly. It’s like placing tiny toaster ovens into the snow pack.” The study appears this week in the ...

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