New England Primate Conservancy

Howler Monkeys

The howler monkey genus, Allouatta,
includes at least 15 species and 7 subspecies
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Black-and-gold Howler (Alouatta caraya)

CONSERVATION STATUS: NEAR THREATENED
Black-and-gold howler monkeys, also known as black howler monkeys, are found in the rainforests of central South America. These New World monkeys range through eastern Bolivia, southern Brazil, Paraguay, and northern Argentina. Their habitat varies froM...
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Bolivian Red Howler (Alouatta sara)

CONSERVATION STATUS: LEAST CONCERN
The Bolivian Red Howler Monkey is found in the neotropical forests of Bolivia and small parts of Peru and Brazil. Bolivian Red Howlers are distinct from other Howler Monkeys in that they prefer to live near rivers, most notably the Beni River in northern Bolivia...
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Mantled Howler (ALOUATTA PALLIATA)

CONSERVATION STATUS: VULNERABLE
Mantled howler monkeys are found on the southern tip of Mexico and in Veracruz, southern Guatemala, Costa Rica, Panama, the west coast of Ecuador, and Colombia at elevations of up to 6,562 feet (2 km). Mantled howlers lives in lowland rain forests...
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Northern Brown Howler (ALOUATTA GUARIBA GUARIBA)

CONSERVATION STATUS: CRITICALLY ENDANGERED
Although there has been some posturing and jostling among researchers as to whether this monkey is a distinct species or a subspecies, the International Union for the Conservation of Nature (IUCN) recognizes the northern brown howler monkey as one...
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Photo credit: Peter Schoen/ Creative Common​s
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Red-Handed Howler (ALOUATTA belzebul)

CONSERVATION STATUS: LEAST CONCERN
Red-handed howler monkeys are found in Amazonian Brazil and surrounding regions. The northeast states of Brazil consist of Maranhão, south Amapa, Para, Sergipe, and Tocantins and the fragmented Atlantic forest region consists of the states of...
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Photo credit: Sidnei Dantas/Creative Commons
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Yucatan Black Howler (ALOUATTA pIGRA)

CONSERVATION STATUS: ENDANGERED
Yucatan black howler monkeys are found in Belize (the location of their most widespread population), northern Guatemala, and southeastern Mexico in the regions of Chiapas, Yucatan, Quintana Roo, Campeche, and Tabasco). They are endemic to the largest...
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  • Primate Conservation
    • Primate Conservation
    • Primate Facts
    • Conservationist Limelight
    • Primates in Animal Studies
  • Education
    • What is Humane Education?
    • The Case of the Disappearing Habitat: The Candy Culprit-Get Started! >
      • Step 1: You're On the Case
      • Step 2: You Get a Clue
      • Step 3: The Investigation
      • Step 4: The Candy Boss
      • Step 5: The Case Isn't Closed Yet
      • Good Detective Strategies and Helpful Hints
    • Cyber Flashcards >
      • 10 of the most well known primate species
      • 10 of the weirdest primate species
      • 10 primate species you probably never heard of
      • 10 of the most endangered primates species
    • The Alphabet Soup of Conservation-Video and Introduction >
      • Alphabet Soup Activities
    • Your Evolutionary Family Tree-Start here >
      • Step 1: Observation
      • Step 2: Questions
      • Step 3: Background Research
      • Step 4: Hypothesis
      • Step 5: Experiment
      • Step 6: Analyze Data
      • Step 7: Conclusions
      • Step 8: Publish
      • Lab Notebook
    • Where Primates Live
    • Primates and Their Habitats Introduction >
      • Game 1: Monkey Match Up
      • Game 2: Concentration
      • Game 3: One Handed Solitaire
      • Game 4: Go Fish With a Twist
      • Activity 5: Whos in the Cards
    • Life in Tropical Rainforests Introduction >
      • Activity 1: Rainforest Matching Game
      • Activity 2: Living Between the Layers
      • Activity 3: Where in the World
      • Activity 4: Finding Fun Rainforest Facts
      • Activity 5: You Can Help Rainforests
  • Primates At-a-Glance
    • African Apes At-a-Glance
    • African Monkeys At-a-Glance
    • African Prosimians At-a-Glance
    • Asian Apes At-a-Glance
    • Asian Monkeys At-a-Glance
    • Asian Prosimians At-a-Glance
    • Latin American Monkeys At-a-Glance
  • Primate Profiles
    • Apes of Africa >
      • Bonobos
      • Chimpanzees
      • Gorillas
    • Apes of Asia >
      • Orangutans
      • Gibbons
    • Monkeys of Africa >
      • Allenopithecus
      • Baboons
      • Colobus Monkeys
      • Geladas
      • Grivets, Tantalus, Malbroucks, and Vervets
      • Guenons
      • Kipunjis
      • African Macaque
      • Mandrills
      • Mangabeys
      • Patas Monkeys
    • Monkeys of Asia >
      • Langurs, Leaf Monkeys, Lutungs, Surilis
      • Macaques
      • Proboscis Monkeys
      • Snub-Nosed Monkeys
    • Monkeys of Latin America >
      • Capuchin Monkeys
      • Howler Monkeys
      • Marmosets
      • Muriquis
      • Night or Owl Monkeys
      • Saki Monkeys
      • Spider Monkeys
      • Squirrel Monkeys
      • Tamarins
      • Titi Monkeys
      • Uakaris
      • Woolly Monkeys
    • Prosimians of Africa >
      • Galagos or Bushbabies
      • Lemurs
      • Pottos
    • Prosimians of Asia >
      • Lorises
      • Tarsiers
    • Glossary
  • How To Help Wildlife
    • What You Can Do
    • Personal Choices
    • Using media
    • In Your Community
  • About
    • What We Do
    • Education Team
    • Board of Directors
    • FAQs
    • Contact Us
  • Get Involved
    • Donate
    • Volunteer
  • Donate Today