Evolutionary biology looks at hominid and ape specimens, but recent and ancient, looking to prove evolution. So, that is the evidence that they find. -The specimens are so sparce, it will be another 50 years before we have enough to really follow the various lines without lots of guessing. Gould said it was the trade secret of paleoanthropology that all we had were the 'tips and nodes' of the branches. -I still follow the 'third way': guided evolution, the only interpretation which makes any sense.