# Tucuxi (*Sotalia fluviatilis*)

Canonical page: https://creaturedata.com/animals/tucuxi  
Data as of: 2026-11-11

The tucuxi (Sotalia fluviatilis) is a species in the family Delphinidae, order Cetacea. Recorded adults weigh 46.7 kg to 60 kg and live up to 30.4 years. Its IUCN Red List status is Endangered.

## Quick facts

| Fact | Value |
|---|---|
| Weight | 46.7 kg – 60 kg |
| Length | Not recorded |
| Lifespan | 30.4 years |
| Diet | Piscivore |
| Longest recorded lifespan | 35 years |
| Main food | Not recorded |
| Habitat | Not recorded |
| Gestation | 330 days – 365 days |
| Young per litter or clutch | 0.985 |
| Age at maturity | 6 years |
| Litters or clutches a year | 0.4 |
| Active | By day (diurnal) |
| Lifestyle | Marine |
| Conservation status | Endangered (IUCN) |
| Countries on record | Not recorded |

## Classification

- kingdom: Animalia
- phylum: Chordata
- class: Mammalia
- order: Cetacea
- family: Delphinidae
- genus: Sotalia
- species: *Sotalia fluviatilis* (Gervais & Deville, 1853)

Synonyms: *Delphinus fluviatilis*, *Delphinus pallidus*, *Delphinus tuchuschi*, *Sotalia fluviatilis fluviatilis*, *Sotalia fluviatilis fluviatilis*, *Sotalia pallida*, *Sotalia pallida*, *Sotalia tucuxi*, *Sotalia tucuxi*, *Sotalia tucuxi fluviatilis*, *Sotalia tucuxi pallidus*, *Steno brasiliensis*, *Steno fluviatilis*, *Steno pallidus*, *Steno tucaxi*, *Steno tucuxi*, *Steno tucuxi*

## Common questions

### How big is the tucuxi?

An adult tucuxi weighs 46.7 kg – 60 kg, according to values recorded on Wikidata.

### Is the tucuxi endangered?

The tucuxi is listed as Endangered on the IUCN Red List, meaning it faces a very high risk of extinction in the wild.

### How long does the tucuxi live?

The tucuxi has a recorded lifespan of 30.4 years.

### How long is the tucuxi pregnant?

The recorded gestation period is 330 days – 365 days.

### What kind of animal is the tucuxi?

The tucuxi (Sotalia fluviatilis) belongs to the family Delphinidae in the order Cetacea.

## Sources

- [An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles](https://doi.org/10.6084/m9.figshare.3563457.v1), CC0 1.0, E096-269. Myhrvold, N.P., Baldridge, E., Chan, B., Sivam, D., Freeman, D.L. & Ernest, S.K.M. (2015) An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96: 3109. https://doi.org/10.1890/15-0846R.1. Data: https://doi.org/10.6084/m9.figshare.3563457.v1
- [Catalogue of Life eXtended Release](https://www.checklistbank.org/dataset/316691), CC BY 4.0, 2026-10-16 XR. Catalogue of Life (2026). Catalogue of Life eXtended Release, version 2026-10-16 XR. Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgzlf
- [Wikimedia Commons](https://commons.wikimedia.org), per file (CC0 / public domain / CC BY green, CC BY-SA amber, anything else not displayed), 2026-11-11. Wikimedia Commons contributors. Wikimedia Commons. https://commons.wikimedia.org (each file credited to its author under its own licence).
- [EltonTraits 1.0: species-level foraging attributes of the world's birds and mammals](https://doi.org/10.6084/m9.figshare.3559887.v1), CC0 1.0, 1.0. Wilman, H., Belmaker, J., Simpson, J., de la Rosa, C., Rivadeneira, M.M. & Jetz, W. (2014) EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95: 2027. https://doi.org/10.1890/13-1917.1. Data: https://doi.org/10.6084/m9.figshare.3559887.v1
- [Wikidata](https://www.wikidata.org), CC0 1.0, 2026-11-11. Wikidata contributors. Wikidata. https://www.wikidata.org (data retrieved via the Wikidata Query Service).
- [Wikipedia (English)](https://en.wikipedia.org), CC BY-SA 4.0, 2026-11-11. Wikipedia contributors. Wikipedia, The Free Encyclopedia. https://en.wikipedia.org (text under CC BY-SA 4.0; each block names its article and revision).

Cite as: Tucuxi (Sotalia fluviatilis). Retrieved from https://creaturedata.com/animals/tucuxi