Saving mountain goats with science, guts and good guesses

TO EMPATHIZE with the mountain goats of the Cascade Range, imagine the apocalypse has come and your extended family members are the only survivors on besieged Capitol Hill. Now it’s time to have children.

Unless you want to marry a cousin, you must reach another band of survivalists on Queen Anne. To do so, however, you have to cross a South Lake Union neighborhood that is swarming with zombies and vampires. (No jokes here, please.)