Wiping out the world's mass migrations
Monday, June 1, 2009 - 09:49
in Biology & Nature
Densely packed wildebeests flowing over the Serengeti, bison teeming across the Northern Plains?these iconic images extend from Hollywood epics to the popular imagination. But the fact is, all of the world's large-scale terrestrial migrations have been severely reduced and a quarter of the migrating species are suspected to no longer migrate at all because of human changes to the landscape.