Sperm whale
Physter Macroephalus
The Sperm whale known for its unique shaped body and large square head apparently has the largest brain out of any living animal!
Unlike other whales the Sperm whale lacks a dorsal fin but it has a small dorsal ridge. Females often travel in small groups which can be from two up to 20 whereas males tend to be solitary and are likely to form loose connections with other males. Sperm whales mostly feed on squid but also eats fish which can lead up to a ton of food a day to maintain its energy. The whales can be found in all the major oceans.
IUCN Status – Vulnerable
Length – Up to 18m
Weight – Up to 55 tons
Reproduction – Every 3-5 years
Sightings around Tristan islands- Can be seen in November - March
Marine life on Tristan
The waters surrounding the Tristan islands are home to a diverse range of fish and invertebrates, including the commercially valuable crayfish.