Critically Endangered

The LegendaryIndri Indri

Scientific Name

Indri indri

Local Name

Babakoto

Size

Up to 90cm tall

Madagascar's largest lemur, the Indri Indri captivates visitors with haunting whale-like songs that echo through pristine rainforests. These magnificent tailless primates represent the soul of Madagascar's wilderness.

Physical Characteristics

The Indri Indri is immediately recognizable by its impressive size, distinctive black and white fur pattern, and most notably, the complete absence of a tail - unique among Madagascar's large lemurs.

Size & Weight

60-90cm tall, weighing 6-9.5kg

Largest living lemur species

Distinctive Features

No tail, large round eyes, human-like hands

Vestigial tail stub only 5cm long

Fur Pattern

Black and white patches, woolly texture

Dense fur for cool mountain climate

Vocal Apparatus

Enlarged throat sac for loud calls

Calls audible up to 3km away

Did You Know?

Indri have human-like hands with opposable thumbs and can grasp branches with incredible precision. Their large, forward-facing eyes provide excellent depth perception for navigating through dense forest canopies.

Indri Indri close-up portrait
Indri hands detail
Indri showing no tail

Behavior & Social Life

Indri Indri exhibit some of the most complex social behaviors among primates, with remarkable vocal communications and strong family bonds.

Territorial Calls

Territorial Calls

Famous whale-like songs mark territory and strengthen family bonds

Dawn chorus 6-9 AM
Duet singing with mate
Audible 3km away
Complex harmonies
Monogamous Pairs

Monogamous Pairs

Lifelong partnerships with strong family structures

Mate for life
Joint territory defense
Shared parental care
Family groups 2-6 members
Arboreal Lifestyle

Arboreal Lifestyle

Exceptional vertical climbing and leaping abilities

Vertical clinging
Powerful leaps 10m+
Rarely on ground
Canopy specialists
Feeding Habits

Feeding Habits

Selective herbivores with diverse plant diet

50+ plant species
Leaves, fruits, bark
Morning feeding peak
Seasonal diet changes

Daily Activity Schedule

Understanding Indri daily patterns helps visitors plan the best times for wildlife encounters and photography opportunities.

5:30-6:00 AM

Wake up and preparation

Family members begin stirring in sleeping trees

6:00-9:00 AM

Territorial calling

Loud duet songs to mark territory and communicate

9:00-11:00 AM

Active foraging

Primary feeding time on leaves and fruits

11:00 AM-2:00 PM

Rest period

Quiet time spent grooming and resting

2:00-5:00 PM

Afternoon feeding

Second major feeding session

5:00-6:30 PM

Social time

Family bonding and play activities

6:30 PM onwards

Sleep preparation

Finding secure sleeping sites in tall trees

Best Viewing Times

The optimal time to experience Indri calls is during their dawn chorus between 6-9 AM. This magical experience is considered one of Madagascar's most unforgettable wildlife encounters.

Habitat & Distribution

Indri Indri are found exclusively in Madagascar's eastern montane rainforests, requiring specific habitat conditions for survival.

Andasibe-Mantadia National Park
Excellent

Andasibe-Mantadia National Park

Primary habitat with the largest Indri population and best accessibility for visitors

Population:800-1000 individuals
Best Time:April-October
Difficulty:Easy to Moderate

Key Features:

Easy trail accessExperienced guidesHigh encounter rateResearch station
Maromizaha Reserve
Good

Maromizaha Reserve

Community-managed reserve with growing Indri population and excellent conservation programs

Population:200-300 individuals
Best Time:May-September
Difficulty:Moderate

Key Features:

Community guidesConservation focusLess crowdedResearch opportunities
Zahamena National Park
Limited

Zahamena National Park

Remote pristine rainforest with untouched Indri populations, ideal for advanced researchers

Population:300-400 individuals
Best Time:June-August
Difficulty:Very Challenging

Key Features:

Pristine habitatResearch onlyMinimal tourismChallenging access

Habitat Requirements

Elevation Range

800-1,200m above sea level

Cool mountain climate preferred

Forest Type

Primary montane rainforest

Dense canopy with multiple layers

Territory Size

18-32 hectares per family

Defended through vocal calls

Canopy Height

25-30 meters average

Tall trees for vertical movement

Annual Rainfall

1,500-2,000mm per year

High humidity environment

Temperature Range

15-25°C year-round

Cool mountain temperatures

Habitat Threats

Primary Threats:
  • Slash-and-burn agriculture (tavy)
  • Illegal logging and charcoal production
  • Mining activities in forest areas
  • Climate change affecting mountain forests
Conservation Actions:
  • Protected area expansion
  • Community-based conservation
  • Reforestation programs
  • Sustainable tourism development

Conservation Efforts

Dedicated scientists, local communities, and international organizations work together to protect the critically endangered Indri Indri from extinction.

Indri Monitoring Program
Ongoing since 2008

Indri Monitoring Program

Madagascar National Parks & International Partners

Long-term population monitoring and behavioral studies to track Indri health and habitat changes

800+ individuals monitored

Key Activities:

Population surveys
Behavioral research
Habitat mapping
Genetic studies
Community Forest Management
Active in 15 communities

Community Forest Management

Local VOI (Community Interest Groups)

Empowering local communities to protect Indri habitat through sustainable forest management practices

12,000 hectares under protection

Key Activities:

Forest patrols
Alternative livelihoods
Education programs
Sustainable harvesting
Habitat Restoration Initiative
Expanding annually

Habitat Restoration Initiative

Mitsinjo Association

Restoring degraded forest corridors to reconnect fragmented Indri populations and expand habitat

500 hectares restored

Key Activities:

Native tree planting
Corridor creation
Soil restoration
Water source protection
Anti-Poaching & Protection
24/7 patrol system

Anti-Poaching & Protection

Madagascar National Parks Authority

Strengthening law enforcement and community engagement to prevent illegal hunting and habitat destruction

Zero poaching incidents in key areas

Key Activities:

Ranger training
Community alerts
Legal enforcement
Habitat surveillance

Recent Research Breakthroughs

2019

Indri Song Complexity

Scientists discovered Indri songs have rhythm patterns similar to human music, with complex beat structures and categorical rhythms.

2020

Genetic Diversity Study

Genetic analysis revealed critically low genetic diversity, highlighting urgent need for population connectivity.

2021

Territory Mapping

Advanced GPS tracking mapped precise territory boundaries, revealing overlap zones crucial for population management.

2023

Climate Impact Assessment

Research showed Indri populations are highly vulnerable to temperature increases, requiring immediate habitat protection.

Help Save the Indri Indri

With fewer than 10,000 Indri remaining in the wild, every action counts. Join the global effort to protect Madagascar\'s singing lemurs for future generations.

Visit Responsibly

Choose certified eco-tourism operators that contribute directly to conservation

Support Local Communities

Buy handicrafts and support community-based conservation initiatives

Donate to Projects

Fund specific conservation programs protecting Indri habitat

Spread Awareness

Share knowledge about Indri conservation needs with others

Visiting the Indri Indri

Essential information for planning your Indri encounter, ensuring both memorable experiences and responsible wildlife viewing.

Best Time to Visit

  • April-October dry season for easier forest access
  • 6-9 AM for territorial calling experience
  • Early morning visits have highest success rates
  • Avoid rainy season (November-March) for better trails

What to Bring

  • Sturdy hiking boots with good grip
  • Rain jacket and warm layers for cool mornings
  • Binoculars for better viewing without disturbance
  • Camera with telephoto lens (no flash allowed)

Viewing Etiquette

  • Maintain 10-meter minimum distance from Indri
  • Move slowly and quietly in the forest
  • No flash photography - disturbs the animals
  • Follow guide instructions at all times

Photography Guidelines

  • Use telephoto lens to maintain respectful distance
  • Silent camera mode to reduce noise
  • Natural light only - no artificial lighting
  • Focus on natural behaviors, avoid staged shots

Recommended Tour Options

Half-Day Indri Discovery

$45
4 hours
Easy

Includes:

  • National park fees
  • Local guide
  • Transportation

Highlights:

Indri calling experienceForest nature walkWildlife spotting
Best for: First-time visitors

Full-Day Indri Research

$85
8 hours
Moderate

Includes:

  • All park fees
  • Expert guide
  • Lunch
  • Transportation

Highlights:

Extended Indri observationMultiple forest trailsPhotography opportunities
Best for: Wildlife enthusiasts

Multi-Day Indri Expedition

$320
3 days
Challenging

Includes:

  • Accommodation
  • All meals
  • Expert guides
  • Research participation

Highlights:

Deep forest accessResearch station visitCommunity interaction
Best for: Serious researchers

Pre-Visit Checklist

Preparation

Essential Gear

Permits & Guides

Logistics

Important Notes

Weather Considerations:
  • • Temperatures can drop to 15°C in early morning
  • • High humidity year-round in rainforest
  • • Sudden rain showers possible any time
Physical Requirements:
  • • Moderate fitness level recommended
  • • Uneven forest trails with roots and rocks
  • • 2-4 hours of walking involved