# Addax (*Addax nasomaculatus*)

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

The addax (Addax nasomaculatus), also called the screwhorn antelope or white screwhorn antelope, is a mammal in the family Bovidae, subfamily Antilopinae and tribe Hippotragini. It is a large, terrestrial, nocturnal herbivore with a representative adult body mass of 70 kg, and reported adult weights from 60 to 125 kg. Gestation lasts 276 days, females have 1 young per litter and 1 litter per year, and sexual maturity is reached at 2.6 years. The addax is listed as Critically Endangered on the IUCN Red List, a threatened category, and its recorded lifespan is 25.7 years, with values up to 28.2 years.

## Quick facts

| Fact | Value |
|---|---|
| Weight | 60 kg – 125 kg |
| Length | Not recorded |
| Height | 95 cm – 1.15 m |
| Lifespan | 25.7 years – 28.2 years |
| Diet | Herbivore |
| Main food | leaves |
| Habitat | desert |
| Gestation | 259 days – 276 days |
| Young per litter or clutch | 1 |
| Age at maturity | 2.59 years |
| Litters or clutches a year | 1 |
| Active | At night (nocturnal) |
| Lifestyle | Terrestrial |
| Conservation status | Critically Endangered (IUCN) |
| Countries on record | Not recorded |

## Classification

- kingdom: Animalia
- phylum: Chordata
- class: Mammalia
- order: Artiodactyla
- family: Bovidae
- genus: Addax
- species: *Addax nasomaculatus* (Blainville, 1816)

Synonyms: *Antilope nasomaculata*, *Cerophorus nasomaculata*

## Common questions

### What kind of animal is the addax?

The addax is a mammal in the family Bovidae and the order Artiodactyla. It belongs to the subfamily Antilopinae and the tribe Hippotragini.

### How heavy is an addax?

An adult Addax has a representative body mass of 70 kg, with reported values from 60 to 125 kg.

### What does the addax eat?

The addax is a herbivore.

### Is the addax endangered?

Yes. The addax is listed as Critically Endangered (CR) on the IUCN Red List, which is a threatened category.

### How long does an addax live?

The addax has a lifespan of 25.7 years, with values up to 28.2 years reported.

### How many young does an addax have?

The addax has 1 young per litter and 1 litter per year, after a gestation period of 276 days.

### Who named the addax?

The scientific name Addax nasomaculatus carries the authority (Blainville, 1816).

## 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: Addax (Addax nasomaculatus). Retrieved from https://creaturedata.com/animals/addax