Bottlenose Dolphin

Scientific Name:
Tursiops truncatus
2.5 - 3 m (8.2-9.8 ft)
200 - 650 kg (440-1,400 lbs)
good to go
Fish, squid, octopus

Physical characteristics

sleek, streamlined body; dorsal fin; dark grey back and light grey belly; curved mouths; no external pinnae

Behavioral characterization

live together in pods (inshore ~12, offshore hundreds); interactions (touching, chasing, vocalizing); tail slapping; bow riding; sleek swimmers;


Widley distributed in cold temperate to tropical seas , ranging from latitudes of 45°N to 45°S.

Population size



killer whales and sharks

Migration/Dispersal patterns

Some coastal animals have small movement ranges; migration depends on food availability and temperature; seasonal migration

Social system/Group size

Inshore, they are found in small groups of around 12 individuals. Offshore they are found in large groups of up to hundereds of individuals.

Major threats

entanglement from fishing nets; habitat destruction and degration; pollution; disease; illegal killing; loss of prey

Research efforts

much research for data about behavioral characteristcs, where to have protected areas, and other conservation efforts

Fun fact

Bottlenose dolphins can travel at speeds of up to 35 kilometres (20 miles) per hour.