Food for thought: Omnivore’s dilemma

In case you pay attention to the latest paleontology news, there’s been a lot of publicity towards the ever-growing case for giant flightless birds being herbivores. Isotope analysis done on the Eocene Gastornis and Pleistocene Genyornis suggest diets high in fruits (for Gastornis) and grass (Genyornis), overturning the long-held assumption of them as predators.  http://link.springer.com/article/10.1007%2Fs00114-014-1158-2 So that’s that, it seems; we made a mistake, and now these brilliant scientists have demoted these terrifying runners into placid, docile browsers according to the headlines.  http://link.springer.com/article/10.1007%2Fs00114-014-1158-2