Vaquita
The vaquita (Phocoena sinus) is a rare type of porpoise. It lives only in the Gulf of California. It is the world's smallest cetacean and most endangered marine mammal. The Vaquita is listed as Critically Endangered by the International Union of Conservation of Nature. Forty years ago, the Vaquita population was estimated to have 1000 living individuals.  Current research has shown that from 1990 to now (2021), the population has dropped from close to 500 individuals down to 20 or less.  The species is most under threat from illegal fishing activities that are taking place in the Gulf; ongoing bycatch in gillnets used to catch shrimp and to poach the endangered totoaba (Totoaba macdonaldi).  This species requires a 9-month maternal care period for newborns after birth. Without their mothers, newborns will not be able to survive. Therefore, the loss of a female mother vaquita results in an additional loss of their newborn.