Mike Mussa, a former chief economist at the International Monetary Fund, says through interest rate cuts the major economies have already demonstrated their capacity to act cooperatively.
Dinosaurs like Albertosaurus was able to hunt cooperatively with other members of their own family, while raptors took pack hunting to a whole new level.
Much like human hunter-gatherers, they lived and hunted in complex social groups consisting of a few nuclear families, and used their social skills to cooperatively take down larger creatures.
The size difference between Tenontosaurus and Deinonychus suggests that in order to attack one, the Deinonychus would be forced to hunt cooperatively, to have any chance of bringing it down.