Scientists find fossil proof of Egypt's ancient climate
...a thriving savannah, complete with humans, rhinos, giraffes and other wild life. Evidence for the hominin presence abounds near the lake in the form of Middle Stone Age artifacts such as stone scrapers and blades. "The artifacts provide a record that people were coming to the lake," said Smith. "Genetic evi...Winning by a neck -- Giraffes avoid competing with shorter browsers
...petition with shorter herbivores could explain why giraffes feed mostly on leaves high in trees, despite being...er herbivores, such as kudu, that appears to drive giraffes to eat leaves high in the trees....