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Spiders Are Much Smarter Than You Think

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Enlarge (credit: xbn83 / Getty Images)

People tend to associate intelligence with brain size. And as a general guideline, this makes sense: more brain cells, more mental capabilities. Humans, and many of the other animals we’ve come to think of as unusually bright, such as chimpanzees and dolphins, all have large brains. And it’s long been assumed that the smallest brains simply don’t have the capacity to support complex mental processes. But what if they do?

The vast majority of Earth’s animal species are rather small, and a vanishingly small portion of them have been studied at all, much less by cognition researchers. But the profile of one group of diminutive animals is rapidly rising as scientists discover surprisingly sophisticated behaviors among them.

“There is this general idea that probably spiders are too small, that you need some kind of a critical mass of brain tissue to be able to perform complex behaviors,” says arachnologist and evolutionary biologist Dimitar Dimitrov of the University Museum of Bergen in Norway. “But I think spiders are one case where this general idea is challenged. Some small things are actually capable of doing very complex stuff.”

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Original Article: arstechnica.com

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Omnitrak’s National City Pride Survey Uncancels Top Metro Destinations

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New York Ranks #1, Followed by San Diego, Los Angeles, Nashville, Seattle; Urban Life Reconstitutes New Communities, Including Cats and Dogs

(PRWeb February 18, 2022)

Read the full story at https://www.prweb.com/releases/omnitraks_national_city_pride_survey_uncancels_top_metro_destinations/prweb18505132.htm

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First-Ever App-based Platform for Men’s Health Now Available In…

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Bastion Health, the first-ever comprehensive app-based telehealth platform for men’s health specializing in reproductive and prostate health, is now available to Florida residents.

(PRWeb January 13, 2022)

Read the full story at https://www.prweb.com/releases/2022/1/prweb18422689.htm

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Ships From 1,581 Ports May Go to Antarctica, Bringing Unwanted Guests

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Enlarge / Tourist boats could potentially bring invasive species to the Antarctic region. (credit: Andrew Peacock)

Right now, the Antarctic and the waters around it are surprisingly free of invasive species. According to new research, however, that situation might change in the not-too-distant future, thanks to a shocking level of connectivity with ports across the world. Ships can accidentally carry a large array of marine life, which can in turn colonize new places (like the world’s polar south), outcompete native life, and generally wreak havoc on an ecosystem. New research has traced the paths of the various research vessels, tourist ships, and fishing boats that chug along through the icy waters of the Antarctic.

According to Arlie McCarthy, a researcher in the University of Cambridge’s Department of Zoology and the British Antarctic Survey, these watercraft all carry with them a risk of unwanted visitors. And the visitors may have more chances to relocate than we once thought.

“We know from other cold areas in the world, including the Arctic, that things growing on the hulls of ships absolutely do get transported from place to place, and it is one of the major sources of marine introductions around the world,” McCarthy told Ars. “We also know that ships going into Antarctica do have things growing on them. What we didn’t know until this point was good detail on where those ships go.”

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Original Post: arstechnica.com

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