How do you count penguins from space? From their poop smears, of course

Penguin colonies produce such prodigious quantities of poop that smears of it are visible from space. That means that scientists, with the help of NASA, can count the filthy little birds from satellite images. Since the Antarctic is so inaccessible, surveying the penguins from space could help conservation biologists monitor these populations for any troubling die-offs.Like skidmarks on tighty whities, penguin poop smears stand out against the white, reflective snow and ice of the Antarctic. Som