Travelling in groups of 2 to 25 individuals, the tucuxi (too- KOO-she) hunts near river channels, where turbulence disrupts fish schools. It is classified as an oceanic dolphin, though some live near the coast and others reside in the Amazon and Orinoco rivers of South America.

Sotalia fluviatillis
Size: 1.4 to 1.8 m, 36 to 45 kg
Calves at birth: 70 to 80 cm
Teeth: 26 to 35 teeth on each side of upper and lower jaws, often raggedly arranged in lower jaw
Food: Fish (armoured catfish) and crustaceans
Habitat: Coastal waters, especially bays and rivers
Range: Orinoco and Amazon river systems and coastal South Atlantic, from Panama to Santos, Brazil
Status: Population unknown, but common throughout its range

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