100 years of national parks, 100 years of climate change data.

All scientists follow in the footsteps of earlier scientists. Steve Beissinger, Jim Patton and their colleagues at UC Berkeley’s Museum of Vertebrate Zoology take this more literally than most. Since 2005, they have tried to walk exactly where their predecessors walked 100 years ago, in an attempt to understand where California’s native animals are heading in a warming climate.