Trying to get back into doing some more illustrating. Here, a portrait of the 'koala lemur' Megaladapis edwardsi. It may have gone extinct as recently as the 1400s. Some artistic license, of course, especially with eyes (inspired by living Sclater's lemur). #Paleoart #extinctlife #primatology

I am taking art/design commissions (but only 1-2 per month due to the terms of my unemployment). Please feel free to DM if you are interested. Also please share to spread the word. Info about services and rates can be found at my website: sites.google.com/view/wdspale...

There are also a number of behavioral and cognitive 'strategies' other than know-how copying that are likely to have mitigated the inherent costs of knapping. The complexity of these interactions is underappreciated, and here we make an attempt to break it all down. @ctennie.bsky.social

Knapping imposes risks. So much is undeniable. This includes the injury risks related to toolmaking, but also the time and energy spent on toolmaking and learning to knap and the material costs. But the relative magnitude of these costs and the overall cost-benefit profile of knapping is not known.