amnhnyc:

An exceptionally well-preserved skull of a newly discovered 325-million-year-old shark-like species suggests that early cartilaginous and bony fishes have more to tell us about the early evolution of jawed vertebrates—including humans—than do modern sharks, as was previously thought.

The new study is based on shark fossil collected in Arkansas, where an ocean basin once was home to a diverse marine ecosystem. The fossilized skull of the new species Ozarcus mapesae was imaged with high-resolution x-rays at the European Synchrotron, letting the scientists “digitally dissect out the cartilage skeleton.”

Learn more about this new study.
romkids:

The head of a pipe made by Canadian First Peoples. 
As the smoke is blown from their mouth and then down the pipe, it would emerge from the head at the end, creating a fascinating effect!
classfirefly:

"I thought we were an amazing couple. In a way, it might hurt you to hear this, but since there is no sequel to Serenity it is a relief, because I can’t imagine Zoe without him. I really can’t." - Gina Torres