Adult vaquitas are typically 1.2 to 1.5m in length with females being slightly larger than males. At birth their average length is 0.6-0.7m. Juveniles also have white spots on their dorsal fins. Food Habits Vaquitas feed on teleost fishes and squid, which are found near the surface of the water. Reproduction Sexual maturity is believed to be reached between the ages of three and six years.
Vaquitas have highly seasonal reproduction.
During the spring there is a complete lack of larger calves. The mating period is from mid-April to May, with a gestation period of roughly 10.6 months. Births occur at the beginning of the following March. Behavior Vaquitas have been observed singly or in small groups, indicating that they are primarily solitary individuals. Within such systems, males attempt to maximize their fitness not by monopolizing access to females, but rather by mating with as many females as possible.