ENEndangeredPartial review

Sunda Slow Loris

Nycticebus coucang

Sunda slow loris (Nycticebus coucang), a small nocturnal primate with large eyes.

Sunda slow loris (Nycticebus coucang).

Image: Aprisonsan, CC BY-SA 4.0, via Wikimedia Commons.

At a glance

IUCN category
EN · Endangered
Animal group
Mammals
Population trend
Decreasing
Last verified

Conservation overview

The Sunda slow loris is a small, slow-moving nocturnal primate with huge eyes and a toxic bite — one of the few venomous mammals. It is assessed as Endangered.

It moves deliberately through the trees and is heavily targeted by the wildlife trade.

Range & habitat

Forests of the Malay Peninsula, Sumatra, and nearby areas.

Major threats

Threats below are drawn from the authoritative sources listed on this page. For the current, complete assessment, see the IUCN Red List.

  • Capture for the pet and traditional-medicine trade
  • Habitat loss

Why it matters

A venomous, slow-climbing primate devastated by the pet trade, the Sunda slow loris is a flagship against wildlife trafficking in Southeast Asia.

Sources

Sources for Sunda Slow Loris

Frequently Asked Questions

Are slow lorises really venomous?
Yes. Slow lorises are among the very few venomous mammals: they produce a toxin from a gland on the arm that, combined with saliva, can deliver a venomous bite. They should never be handled.
Why is the Sunda slow loris Endangered?
Published assessments cite heavy capture for the pet and traditional-medicine trade, plus habitat loss. See the IUCN Red List.

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