Purple finches, indicators of healthy coniferous habitat, are declining in the Northwest, according to data from the Klamath Bird Observatory.
Credit: J. Livaudais
Populations of many North American songbirds are declining, and in many cases we don't understand why -- for...
The flexible tissue scaffold, shown here emerging from a glass pipette with a tip one millimetre wide, unfolds itself after injection into the body. This could enable surgeons to use minimally invasive techniques, which reduce recovery time, scarring and...
Cosmic rays interacting with the Earth's atmosphere producing ions that helps turn small aerosols into cloud condensation nuclei -- seeds on which liquid water droplets form to make clouds. A proton with energy of 100 GeV interact at the...
Water (stock image). Researchers have used cobalt oxide nanoparticles to split water into hydrogen and oxygen.
Credit: © gertrudda / Fotolia
Researchers from the University of Houston have found a catalyst that can quickly generate hydrogen from water using sunlight, potentially...
When raised in warm water and exposed to acidic water, bryozoans, honeycomb-shaped sea creatures, dissolved within two months, researchers observed.
Credit: Eric Sanford/UC Davis
The one-two punch of warming waters and ocean acidification is predisposing some marine animals to dissolving quickly...
Female mountain gorilla. The ancestors of simian primates -- such as gorillas, gibbons and tamarins -- were among the first to give up nocturnal activity altogether.
Credit: © F.C.G. / Fotolia
Mammals only started being active in the daytime after non-avian...
Earth has a new lightning capital, according to a recent study using observations from the Lightning Imaging Sensor onboard NASA's Tropical Rainfall Measurement Mission.
Lake Maracaibo in Venezuela earned the top spot receiving an average rate of about 233 flashes...
Reconstruction of Halszkaraptor escuilliei. This small dinosaur was a close relative of Velociraptor, but in both body shape and inferred lifestyle it much closely recalls some waterbirds like modern swans.
Credit: Lukas Panzarin; and Andrea Cau for scientific supervision
An exceptionally...
Black mouse ready to fight. Fighting behaviors and the neurons that represent them are not as fixed as previously believed.
Credit: © lllorrri / Fotolia
Adult male mice have a simple repertoire of innate, or instinctive, social behaviors: When encountering a...
Methane hydrate recovered from ocean sediments off Svalbard dissociates into water and methane gas under surface pressure and temperature conditions, allowing the methane released to be lit on fire.
Credit: Image courtesy of National Oceanography Centre
Methane seeps from seafloor deposits...
Cave city in volcanic rocks of uplifted Central Anatolian plateau.
Credit: Russell Pysklywec
When renowned University of Toronto (U of T) geophysicist J. Tuzo Wilson cemented concepts in the emerging field of plate tectonics in the 1960s, he revolutionized the study...
