Mammals were not the first to be warm-blooded
Endothermy, or warm-bloodedness, is the ability of mammals and birds to produce their own body heat and control their body temperature......»»
Some past sea levels may not have been as high as thought, says study of rising and sinking landmasses
One of the current mysteries of climate science surrounds the widely accepted evidence that during the planet's most recent past natural warm period, about 128,000 to 117,000 years ago, global sea levels peaked as high as 6 to 9 meters (20 or 30 feet.....»»
Climate scientists reach "unequivocal" consensus on human-made warming in landmark report
An epochal new report from the world's top climate scientists warns that the planet will warm by 1.5 degrees Celsius in the next two decades without drastic moves to eliminate greenhouse gas pollution. The finding from the United Nations-backed group.....»»
Decline in CO2 cooled Earth"s climate more than 30 million years ago
New research led by the University of Bristol demonstrates that a decline in the concentration of atmospheric CO2 played a major role in driving Earth's climate from a warm greenhouse into a cold icehouse world around 34 million years ago. This trans.....»»
Bird and mammal diversity is declining with biological invasions
The introduction of invasive species leads to a decline in certain native species. A team of researchers from the CNRS and the University of Paris-Saclay has managed to show that 11% of the global phylogenetic diversity of birds and mammals, in other.....»»
Blood-sucking flies may be following chemicals produced by skin bacteria to locate bats to feed on
We humans aren't the only animals that have to worry about bug bites. There are thousands of insect species that have evolved to specialize in feeding on different mammals and birds, but scientists are still learning how these bugs differentiate betw.....»»
Some birds observed stealing hair from living mammals
Dozens of online videos document an unusual behavior among tufted titmice and their closest bird kin. A bird will land on an unsuspecting mammal and, cautiously and stealthily, pluck out some of its hair......»»
Researchers find La Niña increases carbon export from Amazon River
When La Niña brings unusually warm waters and abnormal air pressure to the Pacific Ocean, the resulting weather patterns create an increase in the carbon export from the Amazon River, new research from Florida State University has found......»»
Cozy up with geeky sci-fi, gamer and superhero sweaters - CNET
Don't be left in the cold this winter when you can warm up by wearing sweaters that show off your love for Pokemon, Star Wars, Star Trek, Marvel and DC superheroes, Gremlins, Game of Thrones and more......»»
What happens to marine life when oxygen is scarce?
In September 2017, Woods Hole Oceanographic Institution postdoctoral scholar Maggie Johnson was conducting an experiment with a colleague in Bocas del Toro off the Caribbean coast of Panama. After sitting on a quiet, warm open ocean, they snorkeled d.....»»
Structural biology provides long-sought solution to innate immunity puzzle
Researchers report the first structural confirmation that endogenous -- or self-made -- molecules can set off innate immunity in mammals via a pair of immune cell proteins called the TLR4-MD-2 receptor complex. The work has wide-ranging implications.....»»
Eyes wide shut: How newborn mammals dream the world they"re entering
As a newborn mammal opens its eyes for the first time, it can already make visual sense of the world around it. But how does this happen before they have experienced sight?.....»»
Epigenetic mechanism helps plants to live under high temperatures
Global warming imposes a major threat to plant growth and crop production. In many cases, plants could sense the temperature increase and adjust their morphology and development, facilitating plant cooling and warm adaptation. Hence, understanding th.....»»
Fossil rodent teeth add North American twist to Caribbean mammals" origin story
Two fossil teeth from a distant relative of North American gophers have scientists rethinking how some mammals reached the Caribbean Islands......»»
Bats and behemoths: How large mammals may help bat diversity in the world"s oldest desert
Theresa Laverty had a lot of flexibility in deciding what she would study for her doctoral dissertation when she arrived at Colorado State University, thanks to a graduate research fellowship from the National Science Foundation. After many conversat.....»»
How much shipping can we get through a warming Arctic?
Research discusses the logistic, social and ecological impacts of a warm Arctic Enlarge / As the world continues to warm, scenes like this will occur for a smaller fraction of the year. (credit: Alexander Ryumin / Getty Images) Traveling by.....»»
Stem cells can use same method as plants and insects to protect against viruses
Researchers have found a vital mechanism, previously thought to have disappeared as mammals evolved, that helps protect mammalian stem cells from RNA viruses such as SARS-CoV-2 and Zika virus. The scientists suggest this could one day be exploited in.....»»
Stem cells can use same method as plants and insects to protect against viruses
Researchers at the Francis Crick Institute have found a vital mechanism, previously thought to have disappeared as mammals evolved, that helps protect mammalian stem cells from RNA viruses such as SARS-CoV-2 and Zika virus. The scientists suggest thi.....»»
It"s Cold in the Ocean but It"s Hotter Inside Every Sea Otter
To stay warm in frigid seas, the marine mammals rely on an unexpected use of the powerhouses of their cells. From a report: Sea otters run hot. It's not just a manner of speaking: Scientists have found that the furry mammals' metabolisms work at a ra.....»»
Bitcoin power plant is turning a 12,000-year-old glacial lake into a ‘hot tub’
Private equity's cryptocurrency experiment pushes more costs on the public. Enlarge / In this aerial photo of Greenidge Generation's power plant outside Dresden, NY, Seneca Lake is visible in the background. The lake receives warm water from Gre.....»»
Protein"s "silent code" affects how cells move
The protein actin is ubiquitous and essential for life. In mammals, every cell expresses two of its forms, beta-actin and gamma-nonmuscle-actin. Despite having distinct roles, the two forms are nearly identical, sharing 99% of their amino acid sequen.....»»