Dolphin

Dolphins (Greek: δελφίς, delphís, "dolphin") are a number of kinds of Cetaceans related to the toothed whales of the suborder Odontoceti, and are found throughout the world's oceans and several major river systems. Although fish-like in appearance, dolphins are mammals which breath air and suckle their young on milk.

Dolphin
Pacific White-Sided Dolphin (Lagenorhynchus obliquidens)
Scientific classification
Kingdom Information
Kingdom	Animalia
Subkingdom	Bilateria
Phylum Information
Phylum	Chordata
Sub-phylum	Vertebrata
Infraphylum	Gnathostomata
Class Information
Superclass	Tetrapoda
Class	Mammalia
Sub-class	Theriiformes
Infra-class	Holotheria
Order Information
Superorder	Preptotheria
Order	Cetacea
Sub-order	Odontoceti
Family Information
Families	Delphinidae Platanistidae Iniidae Lipotidae Pontoporiidae
Population statistics

Description

Dolphins are generally cigar-shaped, with a pair of pectoral fins behind the head, a dorsal fin, and horizontal flukes ate the end of the tail. The head bears a mouth which terminates in a well-defined "beak" in most species and contains many cone-shaped teeth; by contrast porpoises - which are often confused with dolphins - do not have a beak-like snout and contain spade-shaped teeth.