The diet of an adult harbour porpoise is made up of various pelagic and demersal fish, as well as invertebrates. In the Southern North Sea, it consists mainly of small benthic fish, herring, cephalopod, whiting and cod. A daily meal would normally consist of about 5 kilos fish (around 10% of the body [details]

Diet: Variety of inshore and offshore fish, herring, mackerel, and anchovy. Krill when young. [details]

Dimensions: Length: male 6' (1.9 m), female 6' (1.9 m), at birth 2 1/2' (0.7 m) [details]

Distribution: East Pacific; Eastern Atlantic Ocean; Indo-West Pacific; Western Atlantic Ocean [details]

Habitat: cool temperate and subpolar, mostly in shallow water [details]

Habitat: inshore and offshore [details]

Holotype: None in existence; name based on common porpoise of authors. [details]

IUCN Red List Category: Subpopulation Baltic Sea harbour porpoise : Critically Endangered (CR) [details]

IUCN Red List Category: Least Concern (LC) [details]

Morphology: The head is blunt. Depending on the light, the back may appear black, grey or brown). The flanks are grey and the underside is white. The pectoral fins are black. A dark line runs from the corner of the mouth to the flipper. The more or less triangular small dorsal fin is positioned in the centre of the back. The upper back and dorsal fin are the only features one normally gets to see of a swimming harbour porpoise. The chief characteristics are its small size, the blunt head and the small triangular dorsal fin. [details]

Morphology: Distinguishing characteristics: Dives without lifting tail. Blow not readily visible. Triangular dorsal fin. Spoon-shaped teeth. Blunt snout. Colour is grey above with white belly.  [details]

Predators: None [details]

Reproduction: Calving: May to June in the North Atlantic. Weaning at six months. [details]

Type locality: "Ocean Europaeo Balthico" [details]