# Big deer mouse (*Peromyscus grandis*)

Canonical page: https://creaturedata.com/animals/big-deer-mouse  
Data as of: 2026-11-11

The big deer mouse (Peromyscus grandis) is a species in the family Cricetidae, order Rodentia. Recorded adults weigh 41 g to 71 g. Its IUCN Red List status is Near Threatened.

## Quick facts

| Fact | Value |
|---|---|
| Weight | 41 g – 71 g |
| Length | Not recorded |
| Lifespan | Not recorded |
| Diet | Carnivore |
| Main food | Not recorded |
| Habitat | Not recorded |
| Gestation | 31.1 days |
| Young per litter or clutch | 2.43 |
| Age at maturity | 49.5 days – 63 days |
| Litters or clutches a year | 7.4 |
| Active | At night (nocturnal) |
| Lifestyle | Terrestrial |
| Conservation status | Near Threatened (IUCN) |
| Countries on record | Not recorded |

## Classification

- kingdom: Animalia
- phylum: Chordata
- class: Mammalia
- order: Rodentia
- family: Cricetidae
- genus: Peromyscus
- species: *Peromyscus grandis* Goodwin, 1932

## Common questions

### How big is the big deer mouse?

An adult big deer mouse weighs 41 g – 71 g, according to values recorded on Wikidata.

### Is the big deer mouse endangered?

The big deer mouse is listed as Near Threatened on the IUCN Red List, meaning it is close to qualifying as threatened.

### How long is the big deer mouse pregnant?

The recorded gestation period is 31.1 days.

### What kind of animal is the big deer mouse?

The big deer mouse (Peromyscus grandis) belongs to the family Cricetidae in the order Rodentia.

## 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
- [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: Big deer mouse (Peromyscus grandis). Retrieved from https://creaturedata.com/animals/big-deer-mouse