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giant abacus
A cute girl playing with wooden abacus. Educational concept for kids. Learing to count. Math for children. Math for children.

The Mystery of Numeracy: How DID We Learn To Count?

Some animals can do rough figuring but only humans count

At a time when many people see numbers, arithmetic, and mathematics as mere oppression, others are intrigued by the basic question, how did the human race learn to do math? There are some clues, as a new project called Quanta is trying to establish. First, while no animals use abstract numbers in the wild, some animals can do rough figuring: Although researchers once thought that humans were the only species with a sense of quantity, studies since the mid-twentieth century have revealed that many animals share the ability. For instance, fish, bees and newborn chicks can instantly recognize quantities up to four, a skill known as subitizing. Some animals are also capable of ‘large-quantity discrimination’: they can appreciate the difference…

jumping-spider-close-up-macro-photography-portrait-of-spider-stockpack-adobe-stock.jpg
Jumping spider close up. Macro photography. Portrait of spider

In What Ways Are Spiders Intelligent?

The ability to perform simple cognitive functions does not appear to depend on the vertebrate brain as such

This year saw a huge uproar in science media over claims that prominent researcher of spider behavior Jonathan Pruitt, a behavioral ecologist currently at McMaster University in Canada, had fabricated evidence of complex, seemingly intelligent behavior in spiders. After many colleagues recently raised concerns in blogs and tweets that behavioral ecologist Jonathan Pruitt had fabricated the data behind a slew of provocative results regarding animal personalities and social spiders, he denied the charges, saying any problems were inadvertent mistakes. Elizabeth Pennisi, “Embattled spider biologist seeks to delay additional retractions of problematic papers” at Science (March 12, 2020) Some of Pruitt’s data management mistakes seem rather curious: More than 20 scientists — co-authors, peers and other interested observers in the field…

Head shot close up portrait of red-and-green macaw in zoo

Polly Want a … Statistician?

Ethology, the science of animal behavior, offers interesting data but the interpretations are too often witless

Can birds really do statistics? A reporter writing up the results of a study for a popular science magazine seems to think so. The researchers are (appropriately) more cautious. But what are the issues here?

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