Cloudy areas over oceans are reflecting less sunlight to space than before.
A 62-million-year-old skeleton sheds light on an enigmatic mammal
For more than 140 years, Mixodectes pungens, a species of small mammal that inhabited western North America in the early Paleocene, was a mystery. What little was known about them had been mostly gleaned from analyzing fossilized teeth and jawbone fragments. But a new study of the most complete skeleton...
Arctic sea ice loss drives drier weather over California and wetter over Spain and Portugal
On decadal timescales, the loss of Arctic ice favors the climate of the south-west of the United States -- and California in particular -- becoming drier on average, especially in winter. This phenomenon would also affect the climate of Spain and Portugal, favoring conditions of higher humidity in winter, although...
Death by feral cat: DNA shows cats to be culprits in killing of native animals
Feral cats have long been suspects in killing native species reintroduced into Australian conservation areas. DNA testing of the carcasses puts felines firmly in the frame.
Clothes dryers and the bottom line: Switching to air drying can save hundreds
By replacing clothes dyers with line drying, households in the U.S. could save upwards of $2,100 and avoid 3 tons of carbon dioxide emissions over the lifetime of a dryer. The exact impacts, however, depend on what kind of dryer you have and where you live, new research shows.
Genetic mutations linked to toxin exposure found in firefighters’ brain tumors
In a study comparing the glioma tumors of firefighters and non-fighters, researchers found a mutational signature tied to exposure to haloalkanes, which are used in flame retardants, fire extinguishers, and pesticides.
Is red wine a healthier choice than white wine? Uncorking the cancer risks
Researchers have conducted a study that scours 'the vast and often contradictory literature on the carcinogenicity of red and white wine' to assess whether this assumption holds up, and to compare the cancer risks associated with wine type.
Are volcanoes behind the oxygen we breathe?
It is widely believed that Earth's atmosphere has been rich in oxygen for about 2.5 billion years due to a relatively rapid increase in microorganisms capable of performing photosynthesis. Researchers provide a mechanism to explain precursor oxygenation events, or 'whiffs,' which may have opened the door for this to occur....
Discovery: The great whale pee funnel moves vital nutrients
Scientists have discovered that whales move nutrients thousands of miles -- in their urine -- from as far as Alaska to Hawaii. These tons of nitrogen support the health of tropical ecosystems and fish, where nitrogen can be limited. They call this movement of nutrients a 'conveyor belt' or 'the...
A longer, sleeker super predator: Megalodon’s true form
The megalodon has long been imagined as an enormous great white shark, but new research suggests that perception is all wrong. The study finds the prehistoric hunter had a much longer body -- closer in shape to a lemon shark or even a large whale.