Honeybee researchers have discovered that the insects release a deadly odor that shortens the lifespan of their family members – usually their sisters.
Honeybee researchers have discovered that the insects release a deadly odor that shortens the lifespan of their family members – usually their sisters. "Previous research has shown that the presence of larvae in colonies reduces adult bees’ energy stores and shortens the honeybee lifespan. Scientists had also found that larvae release what is known as a "brood pheromone," which causes adults to consume more pollen to keep up with larval food demand. But little else was known about this rare chemical concoction found only in bees. When Amdam and colleagues fed synthetic pheromone-laced syrup to adult bees, they found something surprising: It depleted vital stores of a protein called vitellogenin from bees’ fat tissue and shortened their lives dramatically. The life expectancy of entire colonies dropped below 200 days, making it difficult for honeybees to last through winter."
How a cataclysm worse than what killed the dinosaurs destroyed 90 percent of all life on Earth.
While the demise of the dinosaurs gets more attention as far as mass extinctions go, an even more disastrous event called "the Great Dying” or the “End-Permian Extinction” happened on Earth prior to that. Now scientists discovered how this cataclysm, which took place about 250 million years ago, managed to kill off more than 90 percent of all life on the planet.
A new study discovers the “liking gap” — the difference between how we view others we’re meeting for the first time, and the way we think they’re seeing us.
We tend to be defensive socially. When we meet new people, we’re often concerned with how we’re coming off. Our anxiety causes us to be so concerned with the impression we’re creating that we fail to notice that the same is true of the other person as well. A new study led by Erica J. Boothby, published on September 5 in Psychological Science, reveals how people tend to like us more in first encounters than we’d ever suspect.
Using advanced laser technology, scientists at NASA will track global changes in ice with greater accuracy.
Leaving from Vandenberg Air Force base in California this coming Saturday, at 8:46 a.m. ET, the Ice, Cloud, and Land Elevation Satellite-2 — or, the "ICESat-2" — is perched atop a United Launch Alliance Delta II rocket, and when it assumes its orbit, it will study ice layers at Earth's poles, using its only payload, the Advance Topographic Laser Altimeter System (ATLAS).
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