According to researcher Kaeli Swift of the University of Washington's Avian Conservation Laboratory, crows hold "funerals." When they see a corpse of their own kind they gather together and squawk loudly. To determine what they may be doing, Swift displayed a taxidermied dead crow to other crows. On some days though, she wore a creepy mask and wig. After multiple experiments with and without her disguise or the dead bird, the crows appeared to remember "the experience with the mask and dead crow and now connected the area with danger." From Deep Look:
And here’s what Swift said makes that really interesting: These new mobs (she encountered even weeks later) contained crows that had never seen the masked Swift with the dead crow. But they still learned to avoid the masked figure.
Learning directly from each other, rather than through individual experience, is called social learning.
“By participating in these funerals, crows can get information about new dangers without taking the risk,” Swift said.
In a new interview with the Journal of the American Medical Association above, Anthony Fauci, National Institute of Allergy and Infectious Diseases (NAID), said he expects the US will have 100 million doses of a COVID-19 vaccine before the end of the year. “Then, by the beginning of 2021, we hope to have a couple […]
Just for kicks, Paul Rule, 66, participated in a study launched by the Cambridge Natural History Society that enlisted citizen scientists and nature-lovers to help deepen knowledge of the flora and fauna in Cambridge, England. Rule recorded nearly 600 different animal species in his “ordinary” city garden, including an elephant moth like the one seen […]
Astronaut David Scott re-created, in 1971 during the Apollo 15 mission, Galileo’s “falling bodies” experiment by dropping a hammer and feather on the moon at the same time. Simply, both fell at the same rate because there was no air resistance. screengrab via Wonders of Physics/YouTube (Digg)
Over 25 years, eBay has carved out its space as the commerce hub of choice online. With 182 million users worldwide, that works out to about 35 percent of all US mobile users who shop those eBay storefronts. But did you know there are usually around 1.3 billion — with a B — active for-sale […]
Software apps are a dime a dozen. Well, if you’re going by their actual monetary cost, maybe not really. But considering how useless some poorly conceived, poorly executed apps are at doing the job you actually downloaded them to accomplish, it isn’t a stretch to think that many apps aren’t even worth a free download. […]
With everything happening in the last few months, we all but guarantee no one has been thinking about their taxes. That’s understandable — because, beyond all of our current concerns, nobody enjoys the whole tax filing process during even the best of times. Unfortunately, Benjamin Franklin was right — taxes truly are as inescapable as […]