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 white calcite 'veins' of the Loma Blanca fault are evident in this slab of rock on the fault. These veins of calcite reveal a record of fluid-driven earthquakes clustered together on a fault typically characterized by less frequent,...
Adams Flat, one of the two sites in Antarctica where microbes were collected.
Credit: Phil O'Brien
UNSW-Sydney led scientists have discovered that microbes in Antarctica have a previously unknown ability to scavenge hydrogen, carbon monoxide and carbon dioxide from the air...
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...
Treatment with a genome editing agent can preserve sound-detecting bristles in the inner ear of mice with genetic deafness (white box, left). Without the treatment, these bristles disappear (white box, right).
Credit: Gao et al. /Nature 2017
Using molecular scissors wrapped...
These are cardiomyocytes, green, proliferating in a mouse heart after gel injection.
Credit: University of Pennsylvania
In mammals, including humans, the cells that contract the heart muscle and enable it to beat do not regenerate after injury. After a heart attack,...
AWARE instruments at the WAIS Divide field camp in central West Antarctica in December 2015 under a spectacular optical display ("sun dog") due to atmospheric ice crystals.
Credit: Colin Jenkinson, Australian Bureau of Meteorology
An area of West Antarctica more than...
DNA (stock illustration).
Credit: © frenta / Fotolia
A neutral genetic mutation -- a fluke in the evolutionary process that had no apparent biological purpose -- that appeared over 700 million years ago in biological evolution could help explain the origin...
Antarctica.
Credit: Dave Pape, Public Domain
It's official: East Antarctica is pushing West Antarctica around.
Now that West Antarctica is losing weight--that is, billions of tons of ice per year--its softer mantle rock is being nudged westward by the harder mantle...
This is a black-tailed godwit (Limosa limosa). Habitats range from the Russian far-east to Europe, Africa, and Australasia.
Credit: Szabolcs Nagy, Wetlands International
A vast new study of changes in global wildlife over almost three decades has found that low levels...
The atmospheric superrotation at the upper clouds of Venus. While the superrotation is present in both day and night sides of Venus, it seems more uniform in the day (AKATSUKI-UVI image at 360 nm, right side), while in the...
