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893 Featured Specimen
Amazon river dolphin

Details

Amazon river dolphin

Inia geoffrensis

Size
2–2.6 m · 85–185 kg
Diet
Carnivore
Activity
Cathemeral
Sociality
Solitary
Lifespan

Amazon river dolphin is a mammal associated with freshwater habitats. It is carnivorous and usually solitary. Limited range or population size makes protection and habitat management important.

Range

Habitat range map
Native range Occasional / Transient
NeotropicalNeotropicalNeotropicalNeotropicalNeotropicalNeotropicalNeotropicalNeotropical

Map: Ecoregions 2017 © RESOLVE (CC BY 4.0) · Natural Earth (PD)

Details

Habitat

Its range is represented here by the Neotropics, where it uses freshwater habitats. Mobile species may shift habitat use with season, breeding sites, or food availability.

Appearance

Typical length 200-255 cm, weight 85 kg-185 kg. It has a streamlined cetacean body plan, with proportions shaped by its habitat and mode of movement.

Behavior

It is active in bouts across day and night and usually solitary. Spacing, group size, and visibility can change with season, feeding conditions, and breeding activity.

Feeding

It is carnivorous. Food choice and foraging style are tied to life in freshwater habitats, so movements often follow available food resources.

Reproduction

As a mammal, it gives birth to live young, and the mother nurses them in cover or within the social group.

Notes

Recorded scientifically as Inia geoffrensis. Limited range or population size makes protection and habitat management important. In this guide, size, habitat, and activity pattern are useful first clues for recognition.