Human skeleton spiders and frogs

I try not to post Io9 links much from my blog, partly because I figure other people are already seeing those posts on Io9 and partly because I'd be tempted to post so many links that it would just take over the blog, but this movie of frogs and a bird and a spider, all with human-like skeletons visible inside is just too cool to not link to. Creepy and mesmerizing, and seems to gel with the human-animal-robotic interactions that crop up a lot in my stories, even if there's nothing actually mechanical involved.