How hummingbirds evolved to fly at high altitude
(Phys.org) —High up in the Andes, numerous species of hummingbirds are thriving despite low levels of oxygen.
Humans not smarter than animals, just different, experts say
(Phys.org) —Humans have been deceiving themselves for thousands of years that they're smarter than the rest of the animal kingdom, despite growing evidence to the contrary, according to University of Adelaide ...
Tet1 protein helps developing germ cells wipe genes clean of past imprints
A protein called Tet1 is partly responsible for giving primordial germ cells a clean epigenetic slate before developing into sperm and egg cells, according to a new study by researchers at Boston Children's Hospital. This ...
Structure of key pain-related protein unveiled
In a technical tour de force, UC San Francisco (UCSF) scientists have determined, at near-atomic resolution, the structure of a protein that plays a central role in the perception of pain and heat.
Researchers find animals that evolve to have no stomach have same missing genes
How to change cell types by flipping a single switch
With few exceptions, cells don't change type once they have become specialized—a heart cell, for example, won't suddenly become a brain cell. However, new findings by researchers at UC Santa Barbara have ...
Genomic research targets fruit pest
(Phys.org) —The spotted wing drosophila, a major pest that targets berries and cherries and other fruits in the United States, Canada and Europe, is itself being targeted, thanks to groundbreaking genome ...
Benefit of bees even bigger than thought
Bees have a much greater economic value than is widely known, according to a scientific probe into strawberry-growing published on Wednesday.
Signalers vs. strong silent types: Sparrows exude personalities during fights
Like humans, some song sparrows are more effusive than others, at least when it comes to defending their territories. New findings from the University of Washington show that consistent individual differences ...
Study finds 'Goldilocks' effect in snail populations
A University of Iowa researcher has discovered that a "Goldilocks" effect applies to the reproductive output of a tiny New Zealand snail—considered a troublesome species in many countries—that may one ...
The rapid evolution of cobra venom
A new study has provided the first comprehensive insight into how snake venom evolved into the sophisticated cocktail of different proteins it is today.
Birds with badges
A New Zealand bird that conspicuously displays its status on the top of its head can provide valuable insight into the social conventions of all creatures, including humans, scientists have found.
Study: Loss of wetland biodiversity increases disease risk in frogs
Amphibians in species-poor wetlands have a higher risk of becoming infected with a virulent parasite than those in wetlands with a rich diversity of species, according to a Purdue University finding that ...
Guam tests toxic mice to kill invasive snakes
Biologists on Guam are trying to find out if mildly toxic dead mice can help eradicate an invasive species of snake that has caused millions of dollars in damages by creating power outages on the island.