
With limited funds for conservation, researchers spar over which species to save—and which to let go
Faced with a gulf between the species in need and the available resources, some scientists are pushing an approach that combines the cold-blooded eye of an accountant with the ruthless decisiveness of a battlefield surgeon. To do the greatest good, they argue, governments need to consider shifting resources from endangered species and populations that are getting too much attention to those not getting enough. That could mean resolving not to spend money on some species for which the chance of success appears low, such as the vaquita, an adorable small porpoise now down to fewer than 30 animals in Mexico’s Gulf of California.