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Tuesday, December 12, 2017

More-severe climate model predictions could be the most accurate

The climate models that project greater amounts of warming this century are the ones that best align with observations of the current climate, according to a article. Their findings suggest that the models used by the Intergovernmental Panel on Climate Change, on average, may be underestimating future warming.

New species discovered in Malaysian rainforest during unprecedented, top-to-bottom survey

This fall, the California Academy of Sciences partnered with The Habitat Penang Hill and colleagues to conduct a rainforest survey on Malaysia's island state of Penang. A 117-member team documented flora and fauna from the tops of trees to the dark reaches of caves and discovered several species previously unknown to science living just miles from a major metropolis. Survey results will contribute to this ancient rainforest's nomination as a UNESCO biosphere reserve.

Dahl’s toad-headed turtle threatened by fragmented habitat, shrinking populations

A recent study shows that the Dahl's Toad-headed Turtle (Mesoclemmys dahli), a rare reptile found only in Colombia, is threatened with extinction due to alarmingly small and fragmented populations and high levels of inbreeding.

Tigers cling to survival in Sumatra’s increasingly fragmented forests

A research expedition tracked endangered tigers through the Sumatran jungles for a year and found tigers are clinging to survival in low density populations. The study found that well-protected forests are disappearing and are increasingly fragmented: Of the habitat tigers rely on in Sumatra, 17 percent was deforested between 2000 to 2012 alone. Their findings have renewed fears about the possible extinction of the elusive predators.

Living cell membranes can self-sort their components by ‘demixing’

Scientists show for the first time that the complex distribution of molecules within a membrane of a living yeast cell arises through demixing.

Trickle-down is the solution (to the planetary core formation problem)

Scientists have long pondered how rocky bodies in the solar system -- including our own Earth -- got their metal cores. According to new research, evidence points to the downwards percolation of molten metal toward the center of the planet through tiny channels between grains of rock.

Early avian evolution: The Archaeopteryx that wasn‘t

Paleontologists have corrected a case of misinterpretation: The first fossil "Archaeopteryx" to be discovered is actually a predatory dinosaur belonging to the anchiornithid family, which was previously known only from finds made in China.

Pigeons can discriminate both space, time

Pigeons aren't so bird-brained after all. New research shows that pigeons can discriminate the abstract concepts of space and time, likely using a different region of the brain than humans and primates to do so.

3-D-printed minifactories

Researchers have developed a biocompatible ink for 3-D printing using living bacteria. This makes it possible to produce biological materials capable of breaking down toxic substances or producing high-purity cellulose for biomedical applications.

How saturated fatty acids damage cells

Researchers have developed a new microscopy technique that allows for the direct tracking of fatty acids after they've been absorbed into living cells. What they found using this technique could have significant impact on both the understanding and treatment of obesity, diabetes and cardiovascular disease.

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