cave bears and brown bears and and admixture, oh my!

Last week the story of a hybrid hominin was in the news: the discovery that remains found in Denisova Cave were those of a 13-year-old girl whose parents were a female Neandertal and a Denisovan male. This was exciting stuff: we already know, from genomic analysis, that interspecies matings involving Neanderthals, Denisovans, and H.sapiens happened […]

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is it a shrimp? is it a prawn? no – it’s Super Crayfish!

Polyploidy – the duplication of chromosome sets – is relatively common in plants, and can result in the development of new species. (Many modern food crops are polyploids.) It’s much less common in animals, although found in some frogs & salamanders (amphibians) & leeches (annelids). So it was with a mix of excitement, surprise, & […]

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dogs, diets, & the impact of evolution

Yvonne d'Entremont (aka SciBabe) recently posted an article on 'alternative' foods and health products for pets, in her usual no-holds-barred style. It's always good to see pseudoscience called out for what it is, and in the case of pet-focused quackery it's a message that needs multiple repeats. Why? Because pets are dependent on us, & […]

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vegetarian spiders? what is the world coming to?

Like probably everyone reading this, I have always thought that spiders are carnivorous, sucking the precious bodily fluidsA from their prey. I mean, those fangs! And I was wrong, for it seems that some spiders eat some plant material alongside their liquid meals – and some are almost fully vegetarian. A just-published paper (Painting, Nicholson, […]

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on sleep (& lack thereof)

Recently, I had an enjoyable chat with Graeme Hill on the subject of sleep. Also on the show was Karyn O'Keeffe, whose research interests are with the physiology of sleep (& the lack of it). My segment focused on the evolution of sleep and yes, I did quite a bit of reading in preparation! Sleep […]

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