Creatures in Crisis
Photograph of Drill (Mandrillus leucophaeus), recorded as Endangered
Drill (Mandrillus leucophaeus). Image via Wikimedia Commons.

Endangered

Drill

Mandrillus leucophaeus

The Drill is a primate of the family Cercopithecidae (Old World monkeys), related to baboons and even more closely to the mandrill.

Status
Endangered
Scientific name
Mandrillus leucophaeus
CITES
Appendix I
Taxonomy
Mammalia · Primates · Cercopithecidae · Mandrillus

Appearance

The Drill is a large monkey with long extended snouts and a short tail. Its body is covered by brownish-gray hair in opposition to its black face. The fur around the face contains white fur.

Canine teeth in males average 4.5 cm (1.8 in) in length and up to 5.08 cm (2.00 in), while average canines in femals are 1 cm (0.39 in).

Range and habitat

The Drill occurs in Nigeria, Cameroon, and Equatorial Guinea. Its geographical range varies from 19,000 to 20,000 km2 (7,500 to 7,700 mi2). The area of occupancy is slightly smaller than the state of West Virginia, making a very small geographical home range.

It is also protected in the Oban and Okwangowo Divisions of the Cross River National Park, Mbe Mountains forest, and the Afi Mountain Wildlife Sanctuary.

Pins are Wikidata “endemic to” fields. Orange dots, when present, are GBIF occurrence tiles — survey bias included.

Diet

During seasons of less fruit abundance the Drill will eat foods such as leaves and grasses. Generally, the Drill's main diet is composed of seeds, plants, mushrooms, fruits, and even some invertebrate species.

Seasonally dependent migration may occur, where entire units travel to a new region for better access to resources. This migration is motivated by the seeking out of a warmer climate.

In crisis

The Drill is currently listed as an endangered species that occurs across three African countries. The Drill is listed as an endangered species, facing threats from hunting, the pet trade, and human activities. Concern for drills began as early as 1962 for populations occurring in Nigeria, and 1968 for populations in Cameroon.

Drills have a limited home range and are typically found in areas with high human populations, resulting in increased habitat loss, fragmentation, and degradation due to human influences.

CITES lists this taxon on Appendix I. Confirm the current appendix on the CITES checklist.

Drill is Endangered on this catalog because that is the IUCN category stored on Wikidata. Confirm the official criteria and any later count on iucnredlist.org.

Sources

Written for this catalog from the English Wikipedia article on Drill (animal), Wikidata item Q221434. Family and order context is original field-guide writing about the group, not a copied assessment of this one species. Wikipedia text is CC BY-SA. Not an IUCN assessment. Counts, when quoted, can change — confirm them on the recovery programme and on iucnredlist.org.

Photograph via Wikimedia Commons. Wikipedia · Wikidata · IUCN Red List.

Also in this catalog

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Vaquita

Phocoena sinus
Photograph of Javan rhinoceros (Rhinoceros sondaicus), recorded as Critically EndangeredCR

Javan rhinoceros

Rhinoceros sondaicus
Photograph of Sumatran orangutan (Pongo abelii), recorded as Critically EndangeredCR

Sumatran orangutan

Pongo abelii
Photograph of Axolotl (Ambystoma mexicanum), recorded as Critically EndangeredCR

Axolotl

Ambystoma mexicanum

Quick answers

What is Drill?
The Drill is a primate of the family Cercopithecidae (Old World monkeys), related to baboons and even more closely to the mandrill.
What is the conservation status of Drill?
Endangered, as the IUCN category stored on Wikidata for Mandrillus leucophaeus. Confirm the official assessment on iucnredlist.org.
Where does Drill live?
Other populations can be found in forests, savanna, mountain peaks, and inland cliffs.
Why is Drill in crisis?
The Drill is listed as an endangered species, facing threats from hunting, the pet trade, and human activities.
Is this the IUCN Red List page for Mandrillus leucophaeus?
No. This is a researched catalog account. The Red List is the assessment.
Is Drill a pet?
An animal on this catalog is in crisis in the wild. Keeping one is usually the wrong question.