LifeHidden fossils reveal secrets of oceans before major mass extinction A handful of plankton fossils buried in a small chunk of rock show that the oceans were teeming with life before the Late Ordovician mass extinction, the second most severe on record News
LifeT. rex took 40 years to become fully grown An analysis of growth rings in the leg bones of 17 Tyrannosaurus rex individuals reveals that the dinosaurs matured much more slowly than previously thought, and adds to the evidence that they weren't all one species News