Mammalia | Carnivora
Jefferson, T.A., S. Leatherwood and M.A. Webber. 1993. (Ref. 1394)
Size / Weight / Age
Max length : 190 cm TL male/unsexed; (Ref. 1394); 140 cm TL (female); max. published weight: 170.0 kg (Ref. 1394); max. published weight: 170.0 kg
Climate / Range
Subtropical; 45°N - 13°N, 140°W - 180°E
Eastern Central Pacific: USA and Mexico.
Dusky black with lighter ventrum. Gray head and shoulders, black nose with brown-red hair around the eyes. Guard hairs are white-tipped in adult males. Claws present in 5 fingers and absent on the 1st and 5th toes. Cartilaginous webbing extends past the claws. Females have 2 pairs abdominal nipples.
Found at sea, on beaches; when ashore, they prefer volcanic caves and grottos, or other rocky habitats. Found at sea, on beaches; when ashore, they prefer volcanic caves and grottos, or other rocky habitats. Both male and female territorial. Extralimital sightings in California corresponds with El NiÃ±o events (Ref. 1394). Breeds near or in caves marked by the male as his territory. Mating occurs postpartum. Pups nurse for 9 to 11 months during which nursing females fast for an average of 5 days (Ref. 80449).
IUCN Red List Status (Ref. 114614)
CITES status (Ref. 94142)
Threat to humans
FAO(fisheries: | FisheriesWiki | Sea Around Us
Estimation of some characteristics with mathematical models
Very high vulnerability (90 of 100)