Chris Schneider and Tom Smith (the bird men in Ecuador) are looking at the evolution of birds in the lowlands and highlands of E
cuador. They are examining color, beak length, and wing span to see how new species emerge. What other tool was discussed in the documentary that they have available to them but that Darwin did not?
The genetics knowledge which is a library of traits serves as an information center which can be used to analyse evolution was not available to Darwin.
The knowledge of continents being a giant raft floating on molten rock that could fit into a puzzle was not available to Darwin that could solve the solve the existence of oddly similar terrestrial species on separate continents.
