Inspired by the beauty and flying ability of birds, Leonardo da Vinci strived centuries ago to create a human-powered flapping-wing flying machine. But his designs, which da Vinci explored in his Codex on the Flight of Birds, ...
Engineering
Oct 25, 2018
0
6
A study from The Auk: Ornithological Advances presents citizen science data which supports that American Crows and Northwestern Crows almost exclusively (97% of the time) instigate any aggressive interactions with Common ...
Ecology
Jul 4, 2018
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169
Common ravens (Corvus corax) use food associated 'haa' calls to recruit other individuals of the same species (conspecifics) to food foraging sites which may be dangerous because of predators or territorial breeding pairs. ...
Plants & Animals
Mar 12, 2018
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300
For over a century, speciation—where one species splits into two—has been a central focus of evolutionary research. But a new study almost 20 years in the making suggests "speciation reversal"—where two distinct lineages ...
Ecology
Mar 2, 2018
7
249
More than 170 years after Edgar Allan Poe's fictional raven croaked, "Nevermore," scientists are reporting that real-life ravens think about the future.
Plants & Animals
Jul 13, 2017
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311
(Phys.org)—A small team of researchers from Austria and Sweden has found that ravens are able to remember people who trick them for at least two months. In their paper published in the journal Animal Behavior, the group ...
A 40,000 year old piece of raven bone that was etched with near-even lines suggests Neanderthals had an eye for esthetics, French researchers said Wednesday.
Archaeology
Mar 30, 2017
8
223
Ravens have impressive cognitive skills when interacting with conspecifics – comparable to many primates, whose social intelligence has been related to their life in groups. An international collaboration of researchers ...
Plants & Animals
Mar 23, 2017
0
88
A hybrid computing system developed at NASA's Goddard Space Flight Center in Greenbelt, Maryland, is the enabling technology behind an ambitious experiment testing a relative navigation and autonomous docking capability known ...
Space Exploration
Mar 21, 2017
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14
Launching soon, aboard the 10th SpaceX commercial resupply mission, will be a technology module called Raven, which will bring NASA one step closer to having a relative navigation capability. When affixed outside the International ...
Space Exploration
Feb 14, 2017
0
19
