Where do cosmic rays come from? Solving a 50-year-old mystery, a collaboration of researchers has discovered it’s much farther than the Milky Way.
Daily Archives: September 21, 2017
214 posts
The discovery that primitive jellyfish sleep suggests that sleep is an ancient, evolutionarily conserved behavior.
Poison frogs harbor some of the most potent neurotoxins we know, yet scientists have long wondered — how do these frogs keep from poisoning themselves? Scientists are now a step closer to resolving that head-scratcher. And the answer has potential consequences for the fight against pain and addiction.
Neurons are the basic building blocks that wire up brain circuits supporting mental activities and behavior. In a major step forward, scientists have described a discovery about the molecular-genetic basis of neuronal cell types. The study, which involves sophisticated computational analysis of the messages transcribed from genes that are active […]
A genus of Australian ants, many of whose members prefer to forage in blistering temperatures of up to 50°C (122°F), is revised to include 74 new species. The ants include seed-eaters, ant and termite raiders, ‘honeypot ants’ that store nectar and honeydew, and numerous others whose biology is not yet […]
How did Neanderthals grow? Does modern man develop in the same way as Homo neanderthalensis did? How does the size of the brain affect the development of the body? Researchers have studied the fossil remains of a Neanderthal child’s skeleton in order to establish whether there are differences between the […]
Exceptionally preserved trilobite fossils from China, dating back to more than 500 million years ago, have revealed new insights into the extinct marine animal’s digestive system. The new study shows that at least two trilobite species evolved a stomach structure 20 million years earlier than previously thought.
Chronic tissue inflammation resulting from obesity is an underlying cause of insulin resistance and type 2 diabetes. But the mechanism by which this occurs has remained cloaked, until now. In a new paper, researchers identified exosomes — extremely small vesicles or sacs secreted from most cell types — as the […]