Geobulletin alpha

The Sierra Nevada Underground: How does a newly discovered pristine cave look? Finding out at Black Chasm 

There are caves and there are caves. Many of them were discovered long ago, and the easily accessible ones suffered grievous damage. In earlier days, cave decorations (speleothems) were broken off as souvenirs in the sadly mistaken belief that they would grow back quickly. Today's cave vandals have no such excuse. They break and destroy for sheer maliciousness. It's sad either way because

Dorygnathus tweets its way through development 

For various - and mostly good - reasons, there's not been much chance for blogging of late, but the upside is that I have a lot of new art, discussion and science to share in the near future. In the interests of not completely abandoning the blog in the interim, here's a series of Tweets posted over the last two days documenting work on a painting of the Early Jurassic pterosaur Dorygnathus banthensis. I can't say too much about the painting at this stage, because it's earmarked for an [...]