|Lumholtz's tree kangaroo (Dendrolagus lumholtzii) at David Fleay Wildlife Park, Burleigh Heads, Queensland|
|Lumholtz's tree-kangaroo range|
Lumholtz's tree-kangaroo (Dendrolagus lumholtzi) is a heavy-bodied tree-kangaroo found in rain forests of the Atherton Tableland Region of Queensland. Its status is classified as near threatened  by the IUCN, and authorities consider it as rare. It is named after the Norwegian explorer Carl Sofus Lumholtz (1851–1922), who discovered the first specimen in 1883.
It is the smallest of all tree-kangaroos, with males weighing an average of 7.2 kg (16 lbs) and females 5.9 kg (13 lbs). Its head and body length ranges from 480–650 mm, and its tail, 600–740 mm. It has powerful limbs and has short, grizzled grey fur. Its muzzle, toes and tip of tail are black.
Lumholtz's tree-kangaroo are generally solitary animals, with the exception of male-female mating and the long, intimate mother-joey relationship. Each kangaroo maintains a "home range" and will be hostile towards a member of the same gender that enters it (the one exception seems to be non-hostile encounters between adult males and their male offspring). Thus, the male will protect his own range, and visit the ranges of the females in his group. Mating takes place in episodes of about twenty minutes, and is often quite aggressive.
- Groves, C.P. (2005). Wilson, D.E.; Reeder, D.M., eds. Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Baltimore: Johns Hopkins University Press. p. 60. ISBN 0-801-88221-4. OCLC 62265494.
- Winter, J.; Burnett, S. & Martin, R. (2008). "Dendrolagus lumholtzi". IUCN Red List of Threatened Species. Version 2008. International Union for Conservation of Nature. Retrieved 12 Oct 2008. Database entry includes justification for why this species is of Least Concern
- "Lumholtz's tree-kangaroo". Queensland Government. 2005-08-30. Archived from the original on 2009-04-27. Retrieved 2006-10-09.
- "Carl Sofus Lumholtz - biography". Biography. Australian National Herbarium. 17 December 2009. Retrieved 3 November 2010.
citing: J.W. Cribb, The Queensland Naturalist, Vol.44, Nos.1-3, 2006
- Flannery, Timothy F; Martin, Roger; Szalay, Alexandria (1996). Tree Kangaroos: A Curious Natural History. Australia: Reed Books. ISBN 0-7301-0492-3. Retrieved 2006-11-25.
- Cronin, Leonard (2000). Australian Mammals: Key Guide (Revised ed.). Annandale, Sydney, Australia: Envirobooks. ISBN 0-85881-172-3.
- Simon & Schuster's Guide to Mammals, entry 30
- Behaviour Patterns of Lumholtz's Tree Kangaroo
- The Tree Kangaroo and Mammal Group, Inc.
- Tree-kangaroo.net: The Tree-kangaro Group website — information and photos.