New revelations of the past

The tree of life may need a fundamental reorganization according to a new paper from the American Museum of Natural History. The writers state that the "lower" orders of animal life, like jellyfish and sponges comprise their own branch on the tree and evolved a nervous system independently. Image Credit: AMNH

The Open Source Palaeontologist has a new paper on combat among ceratopsian dinosaurs, using fossil wounds to reconstruct ancient battles among horned dinosaurs. Image Credit: Wikimedia Commons