Dolphins and whales are marine mammals. Like us, they breathe air, are warm-blooded, give birth to live young and nurse them with milk.
Whales, dolphins and porpoises are known as cetaceans. They belong to the scientific order of Cetacea, which comes form the Latin word cetus meaning ”large sea creature”.
Scientifically, all cetaceans are whales, but smaller whales are referred to as dolphins, and one family of small whales, are known as porpoises.
Around the world there are more than 80 species of cetaceans, almost half of which are found living or moving through New Zealand waters. Find out more about these animals – from the world’s smallest dolphins to the world’s largest whales – below:

Bryde’s Whales
Bryde’s Whales

Southern Right Whales
Southern Right Whales

Sperm Whales
Sperm Whales

Blue Whales
Blue Whales

Southern Bottlenose Whales
Southern Bottlenose Whales

Orca Whales (Killer whales)
Orca Whales (Killer whales)

Long-finned Pilot Whales
Long-finned Pilot Whales

Curvier’s Beaked Whales
Curvier’s Beaked Whales

Bottlenose Dolphins
Bottlenose Dolphins

Common Dolphins
Common Dolphins

Māui and Hector’s Dolphins