Dolphins;

Dolphin is a fish and it is from a phylum CHORDATA.

Lifespan;55years almost

Dolphin is a common name of aquatic mammals within the infraorder Cetacea.The term Dolphin usually refers to the extant families Delphinidae,

plastanistidae,Iniidae,

And Pontoporiidae,and the extinct Lipotidae.

There are 40 species named as dolphin.

Dolphin's speed is 60km/h.In nature Dolphins have a reputation for being friendly,but they are actually wild animals who should be treated with caution and respect.