These charismatic Old World primates live in bands of 2 to 13 individuals, led by a dominant male, and spend nearly all their time in the trees.
Photograph by Tim Laman
Map
Red Leaf Monkey Range
Fast Facts
- Type:
- Mammal
- Diet:
- Herbivore
- Size:
- Head and body, 16 to 22 in (41 to 57 cm); Tail, 26 to 29 in (67 to 73 cm)
- Weight:
- 13 lbs (6 kg)
- Group name:
- Band
- Protection status:
- None
- Did you know?
- Red leaf monkeys will occasionally add minerals to their diet by eating dirt from a termite mound.
- Size relative to a 6-ft (2-m) man:
-
Asia's leaf monkeys take their name from the lush jungle foliage that makes up the bulk of their diets. All are equipped with a large, chambered stomach, like that of a cow, which allows them to break down and digest their fibrous fare.
Endemic to the jungles of Indonesian and Malaysian Borneo, red leaf monkeys are named for their shaggy auburn coat. They are also known as maroon langurs and maroon leaf monkeys.
These charismatic Old World primates live in bands of 2 to 13 individuals, led by a dominant male, and spend nearly all their time in the trees. They have broad, dark-colored faces with wide, expressive eyes. They average between 13 and 14 pounds (6.2 to 6.3 kilograms).
Beyond leaves, red leaf monkeys also consume large amounts of seeds and flowers. They also eat fruit but avoid sweet, ripe fruit because the sugars disrupt the delicate balance of their complex stomachs.
Red leaf monkeys are highly territorial and will challenge any intruders within their home range. Males emit a loud call to demarcate their territory and warn rivals away.
This species is under some pressure from hunting and habitat loss, but is quite common throughout its range. Nevertheless, they are protected by law throughout Malaysian Borneo.
Mammal Features
-
Animal Conservation
Find out what National Geographic Society is doing to save animals all over the world, and learn what you can do to help.
-
Crittercam Helps Study Rare Species
The Hawaiian monk seal is one of the oldest species of seal on the planet. But their tenure in paradise is perilously close to its end; only about 1,100 seals remain in the wild.
-
Lions Quiz
The king of cats rules with a roar and a fierce bite. What else do you know about this top predator?
-
Cause an Uproar
Big cats are quickly disappearing. Now is the time to act. Cause an uproar to save big cats today.
Animals
-
Aardvark
-
Adélie Penguin
-
African Elephant
-
African Lion
-
African Wild Dog
-
Albatross
-
Alligator Snapping Turtle
-
Amazon Horned Frog
-
American Alligator
-
American Bison
-
American Bullfrog
-
American Crocodile
-
Ammonite
-
Andean Condor
-
Anglerfish
-
Ankylosaurus Magniventris
-
Ant
-
Arabian (Dromedary) Camel
-
Arctic Fox
-
Arctic Hare
-
Arctic Skua
-
Armadillo
-
Asian Elephant
-
Asian Lion
-
Atlantic Bluefin Tuna
-
Atlantic Puffin
-
Aye-Aye
-
Baboon
-
Bactrian Camel
-
Bald Eagle
-
Baltimore Oriole
-
Beaver
-
Beluga Whale
-
Bengal Tiger
-
Bird of Paradise
-
Black Bear
-
Black-Footed Ferret
-
Black Mamba
-
Black Rhinoceros
-
Blacktip Shark
-
Black Widow Spider
-
Bluebird
-
Blue Crab
-
Blue-Footed Booby
-
Blue Jay
-
Blue Marlin
-
Blue Whale
-
Boa Constrictor
-
Bobcat
-
Bottlenose Dolphin
-
Box Jellyfish
-
Brachychampsa Montana
-
Brown Bear
-
Bull Shark
-
Burmese Python
-
Butterflyfish
-
California Condor
-
California Sea Lion
-
Canada Goose
-
Cane Toad
-
Canvasback
-
Caribou
-
Carolina Wren
-
Cheetah
-
Chimpanzee
-
Chipmunk
-
Cicada
-
Clouded Leopard
-
Clown Anemonefish
-
Coelacanth
-
Common Earthworm
-
Common Loon
-
Common Octopus
-
Common Sandpiper
-
Common Vampire Bat
-
Common Wombat
-
Coral
-
Cottontail Rabbit
-
Coyote
-
Cretoxyrhina Mantelli
-
Cuban Screech Owl
-
Cubera Snapper
-
Deer Tick
-
Devil Frog
-
Dingo
-
Dog Snapper
-
Dolichorhynchops Osborni
-
Domestic Cat
-
Domestic Dog
-
Draco Lizard
-
Dugong
-
Eastern Coral Snake
-
Eastern Diamondback Rattlesnake
-
Eastern Gray Kangaroo
-
Egyptian Giant Solpugid (Camel Spider)
-
Electric Eel
-
Elephant Seal
-
Elk
-
Emperor Penguin
-
Fennec Fox
-
Firefly (Lightning Bug)
-
Flying Fish
-
Flying Snake
-
Fossa
-
Frilled Lizard
-
Fur Seal
-
Galápagos Tortoise
-
Gelada
-
Gentoo Penguin
-
Geographic Cone Snail
-
Giant Anteater
-
Giant Clam
-
Giant Pacific Octopus
-
Giant Panda
-
Giant River Otter
-
Giant Squid
-
Gibbon
-
Gila Monster
-
Giraffe
-
Golden Cowrie
-
Golden Eagle
-
Golden Jellyfish
-
Golden Lion Tamarin
-
Golden Poison Dart Frog
-
Gray Whale
-
Great Blue Heron
-
Great Egret
-
Greater Flamingo
-
Greater Rhea
-
Great Horned Owl
-
Great White Shark
-
Green Anaconda
-
Green Basilisk Lizard
-
Green-Eyed Tree Frog
-
Green Iguana
-
Green Sea Turtle
-
Grizzly Bear
-
Groundhog
-
Hammerhead Shark
-
Harbor Porpoise
-
Harp Seal
-
Hawaiian Monk Seal
-
Hawksbill Sea Turtle
-
Hedgehog
-
Henodus Chelyops
-
Hesperornis Regalis
-
Hippopotamus
-
Honeybee
-
Horned Toad (Short-Horned Lizard)
-
Hornet
-
Horse
-
Howler Monkey
-
Humpback Whale
-
Impala
-
Indian Rhinoceros
-
Ivory-Billed Woodpecker
-
Jackrabbit
-
Jaguar
-
Kemp's Ridley Sea Turtle
-
Killer Whale (Orca)
-
King Cobra
-
King Vulture
-
Kinkajou
-
Koala
-
Komodo Dragon
-
Krill
-
Ladybug
-
Laughing Kookaburra
-
Leafy and Weedy Sea Dragon
-
Leatherback Sea Turtle
-
Leopard
-
Leopard Seal
-
Leptoceratops Gracilis
-
Lesothosaurus Diagnosticus
-
Lionfish
-
Little Red Flying-Fox
-
Llama
-
Lobster
-
Locust
-
Loggerhead Sea Turtle
-
Lynx
-
Macaw
-
Madagascar Hissing Cockroach
-
Mallard Duck
-
Manatee
-
Mandrill
-
Marine Iguana
-
Matschie's Tree Kangaroo
-
Meerkat
-
Meller's Chameleon
-
Mexican Axolotl
-
Mola (Sunfish)
-
Mole Rat
-
Monarch Butterfly
-
Mongoose
-
Mononykus Olecranus
-
Moose
-
Mosquito
-
Mountain Goat
-
Mountain Gorilla
-
Mountain Lion
-
Mouse Lemur
-
Mudpuppy
-
Musk-Ox
-
Narwhal
-
Nile Crocodile
-
North American River Otter
-
Northern Leopard Frog
-
Nudibranch
-
Nurse Shark
-
Nutria
-
Ocelot
-
Olive Ridley Sea Turtle
-
Opossum
-
Orangutan
-
Oriental Fire-Bellied Toad
-
Osprey
-
Ostrich
-
Oyster
-
Ozark Big-Eared Bat
-
Pachycephalosaurus Wyomingensis
-
Parrot
-
Parrot Fish
-
Peacock
-
Pelican
-
Peregrine Falcon
-
Pileated Woodpecker
-
Platecarpus
-
Platypus
-
Poison Dart Frog
-
Polar Bear
-
Porcupine
-
Portuguese Man-of-War
-
Prairie Dog
-
Praying Mantis
-
Proboscis Monkey
-
Pronghorn
-
Protosphyraena
-
Protostega Gigas
-
Przewalski's Horse
-
Pufferfish
-
Queen Angelfish
-
Quetzal
-
Raccoon
-
Rainbow Trout
-
Raven
-
Red Crab
-
Red-Eyed Tree Frog
-
Red-Footed Booby
-
Red Fox
-
Red Kangaroo
-
Red Leaf Monkey
-
Red Panda
-
Red-Tailed Hawk
-
Red Uakari
-
Rhesus Monkey
-
Right Whale
-
Ringed Seal
-
Ring-Necked Pheasant
-
Ring-Tailed Lemur
-
Rockhopper Penguin
-
Rocky Mountain Bighorn Sheep
-
Ruby-Throated Hummingbird
-
Sailfish
-
Saltwater Crocodile
-
Sandhill Crane
-
Sand Tiger Shark
-
Scarab
-
Scorpion
-
Sea Anemone
-
Sea Cucumber
-
Seahorse
-
Sea Otter
-
Siberian Tiger
-
Sifaka
-
Skunk
-
Sloth Bear
-
Snow Goose
-
Snow Leopard
-
Snowshoe Hare
-
Snowy Owl
-
Sockeye Salmon
-
Spectacled Bear
-
Sperm Whale
-
Spider Monkey
-
Spotted Hyena
-
Spotted Salamander
-
Spring Peeper
-
Squirrel
-
Starfish (Sea Star)
-
Steller Sea Lion
-
Steller's Sea Eagle
-
Stick Insect
-
Stingray
-
Styxosaurus Snowii
-
Sumatran Rhinoceros
-
Sun Bear
-
Tapir
-
Tarantula
-
Tasmanian Devil
-
Thescelosaurus Neglectus
-
Thick-Billed Murre
-
Thomson's Gazelle
-
Three-Toed Sloth
-
Tiger Salamander
-
Tiger Shark
-
Toucan
-
Triceratops Horridus
-
Triggerfish
-
Troodon Formosus
-
Tundra Swan
-
Tusotheuthis Longa
-
Two-Toed Sloth
-
Tylosaurus Proriger
-
Tyrannosaurus Rex
-
Velociraptor Mongoliensis
-
Wallaby
-
Wallace's Flying Frog
-
Walrus
-
Warthog
-
Warty Newt
-
Wasp
-
Water Buffalo
-
Web-Footed Gecko
-
Weddell Seal
-
Western Lowland Gorilla
-
Whale Shark
-
White-Eared Kob
-
White Rhinoceros
-
White-Tailed Deer
-
Whooping Crane
-
Wildebeest
-
Wild Turkey
-
Wolf
-
Wolverine
-
Wood Stork
-
Xiphactinus Audax
-
Zebra
Advertisement
The Innovators Project
-
Alan Guth: Waiting for the Big Bang
Three decades ago, the innovative physicist had a eureka moment that explained the universe.
Special Ad Section
From the Magazine
-
Gannets Pictures
Champion divers but clumsy landers, doting parents but hostile neighbors—northern gannets abound in contradictions.
-
Estonia's Ural Owls
Photographer Sven Začek provides an intimate view of this large raptor.