The total acreage taken up by the pipelines, wind projects and related development isn't that large, but the open spaces they create allow predators and invasive species to permeate a canopy of trees that once kept them at bay.
Dr Jakob Vinther, of the University of Bristol, agrees: "The fact they were having a diverse diet of both small and large dinosaurs and primitive birds could suggest that they were not specialist predators but more likely a scavenger - a sort of vulture".
And there is little evidence that a large neck is costly to male giraffes, as generally male giraffes are no more vulnerable to predators than females.