They occur on all four islands in the Tristan archipelago, known for being very curious animals, always observing what’s happening either on land or in the water. The seal is a warm-blooded mammal with pups suckling on their mothers for up to 11 months. However, the females leave their pups at intervals throughout the 11 months of nursing to forage for food where they can spend up to 2-3 weeks at sea. Males don’t assist with parental care, and they leave the rookery after each female has been mated and return 8 – 12 days after the female has given birth to mate again, this occurs from October through January. Male fur seals' activity pattern is highly dependent on environmental temperature, because of their thick blubber the seals are poor thermo regulators, so when temperatures become too high, they have to adjust their behaviour to cope.