2) Animals are relatively quick to adapt. It might take a few generations but they will. There are street dogs in India that live their entire life on the busiest streets and manage avoid getting hit. Kangaroo's, Deer, and squirrels learned to avoid roads too for the most part.
3) While human development is bad for some species. Others thrive around humans. More Deer live now than ever before, for example.
4) Not really convinced that we have a net negative on the total biomass of animals on the planet. Lots of evidence that CO2 promotes plant growth. Greening the planet. More trees, would equate to more forrest habitat for larger animals.
5) Do spoons make you fat? ... Kent Brockman reporting