South American Sea Lions have a body length between 1.8 and 2.8 m (5.9 - 9.2 ft) and they weigh between 140 and 350 kgs (310 - 770 lbs). Males are around 2 - 3 times the size of females.
Males are dark brown in colour with a paler coloured underside and they have a full mane. Females are pale brown with some pale markings around their head.
South American Sea Lions can be found along the coast lines of South America.
South American Sea Lions mainly feed on a variety of fish, squid and octopus. They will also feed on young south american fur seals and sea birds, such as penguins.
After a gestation period of 11 months, South American Sea Lions give birth to a single pup. They are weaned at 6 - 12 months old. Females reach sexual maturity at 3 - 4 years of age and males at around 6 years old. Both sexes reach their full adult size at around 8 years of age.