Remember a few months ago when we saw Greg Dykstra's workspace at Pixar and it showed a bunch of sculptures and drawings of dinosaurs and things? Well, we've gotten more information regarding it. The above photo was sent anonymously to Pixar Talk, and it shows Ricky Nierva standing in front of some new concept art, which includes a large mosquito, a crocodile, and a winged dinosaur.
I am almost positive that these pieces of concept art and sculptures belong to the short film attached to Toy Story 3. They always announce what the short film will be several months before a feature's release, and we're almost there. This production looks like quite an extravagant one, which makes part of me want to call it a feature. However, Pixar puts every inch of effort they can muster into each and every production, so I think it's a safe bet to call it a short.
We'll see if I'm right in the coming months... Read more about it at the original post here.
Update: /Film reports that the short is, indeed, attached to Toy Story 3. It also reports that the short will be called Night and Day, will be scored by my favorite composer Michael Giacchino, and is directed by a Pixar character designer named Teddy Newton. Read more here.