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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