New data still have scientists in dark over dark matter
(PhysOrg.com) -- A dark-matter experiment deep in the Soudan mine of Minnesota now has detected a seasonal signal variation similar to one an Italian experiment has been reporting for more than a decade.
Rosetta data reveals more surprises about comet 67P
As the Rosetta spacecraft orbits comet 67P/Churyumov-Gerasimenko, an international team of scientists have discovered that the comet's atmosphere, or coma, is much less homogenous than expected and comet ...
Shifts in physiological mechanisms let male bats balance the need to feed and the urge to breed
A forthcoming article in Physiological and Biochemical Zoology reveals shifts in the mechanisms bats use to regulate metabolism throughout their seasonal activity period.
Photosynthesis maintains Earth's habitability for life as we know it, and shapes the way we search for habitable worlds around distant stars. Scientists have discovered a microbe that can use low-energy light ...
Infidelity pays off for female Gouldian finches
Scientists possibly unlock biodiversity door
(PhysOrg.com) -- Looking for the answer to why the tropical Amazonian rainforest has more bird, plant and insect life than Vancouver Island’s temperate rainforest has been like looking for a needle in a haystack. That is ...
Feeding behavior in monkeys and humans have ancient, shared roots
Behavioural ecologists working in Bolivia have found that wild spider monkeys control their diets in a similar way to humans, contrary to what has been thought up to now. Rather than trying to maximize their ...
Winter months SAD for US Treasury securities, study reveals
The best time to invest in U.S. Treasury securities may be spring, thanks to seasonal variations in investor risk tolerance linked to depression.
Old textbook knowledge reconfirmed: Decay rates of radioactive substances are constant
Physikalisch-Technische Bundesanstalt (PTB) researchers refute the assumption that the decay rate of some radioactive nuclides depends on the distance between the Earth and the Sun.
Butterflies switch lifestyles using hormones
Many habitats on Earth change dramatically with the seasons, profoundly affecting food availability, predation pressure and reproductive opportunities for animals living in these seasonal habitats. To survive ...
Jekyll and Hyde corals tell different warming story
(Phys.org) —Like the rings of a tree trunk, Strontium-to-calcium ratios (Sr/Ca) in coral skeletons have been widely used to determine past ocean temperatures from yearly banded corals. However, scientists ...
Pacific locked in 'La Nada' limbo
(Phys.org)—Sea-surface height data from NASA's Jason-2 satellite show that the equatorial Pacific Ocean is still locked in what some call a neutral, or 'La Nada' state. This condition follows two years ...
Intel 4Q profit down, beats Street (Update)
Intel Corp., the world's largest chipmaker, on Thursday said its fourth-quarter net income fell 27 percent from the previous year, as PC sales continued to weaken.
Effect of season on the health of apes: A case study of wild chimpanzees and Western gorillas
(Phys.org)—Our closest relatives, the great apes, are all endangered and particularly sensitive to infectious diseases. Both chimpanzees and western gorillas experience seasonal variations in fruit availability ...