This otter species is found in Central America, South America and the island of Trinidad.
It is physically similar to the northern and southern river otter, which occur directly north and south of this species' range.
Its length can range from 90–150 cm (35–59 in), of which the tail comprises about a third.
Body weight ranges from 5–15 Kg (11–33 lb).
It is found in many different riverine habitats; including deciduous and evergreen forests, savannas, llanos and pantanal.
They prefer to live in clear fast-flowing rivers and streams.
They are a relatively solitary animal and feed mostly on fish and crustaceans.
Reference: Wikipedia