The vaquita (Phocoena sinus) has the distinction of being the smallest and most endangered cetacean in the world. In the last 22 years the population of vaquita has dropped from 567 to roughly 10 individuals. The vaquita, like so many marine species, is not targeted specifically but ends up as bycatch in gill nets set for other species, in this case the similarly sized totoaba fish (Totoaba macdonaldi) which is itself also critically endangered.
