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gptkbp:instance_of
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gptkb:historical_figure
gptkb:mythological_figure
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gptkbp:activities
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Foraging
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gptkbp:behavior
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gptkb:battle
Grooming
Diurnal
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gptkbp:breeding_season
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Year-round
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gptkbp:color
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Dark brown to black
Distinctive facial markings
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gptkbp:communication
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Vocalizations
Facial expressions
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gptkbp:conservation_efforts
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Protected areas
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gptkbp:conservation_status
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Endangered
Habitat restoration
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gptkbp:cultural_significance
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Symbol of Sri Lankan wildlife
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gptkbp:diet
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Leaves
Folivorous
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gptkbp:ecological_role
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Seed disperser
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gptkbp:foraging_behavior
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Selective feeding
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gptkbp:genetic_diversity
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Moderate
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gptkbp:gestation_period
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6 months
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gptkbp:habitat
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gptkb:battle
gptkb:tree
Tropical forests
Southwestern Sri Lanka
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https://www.w3.org/2000/01/rdf-schema#label
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Purple-faced langur
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gptkbp:interacts_with
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Tourism impact
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gptkbp:length
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50 to 70 cm
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gptkbp:lifespan
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20 years
Infant, juvenile, adult
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gptkbp:mating_system
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Polygynous
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gptkbp:members
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gptkb:collaboration
10 to 30 individuals
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gptkbp:movement
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Quadrupedal
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gptkbp:native_to
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gptkb:Sri_Lanka
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gptkbp:population_trend
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Decreasing
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gptkbp:predators
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Leopards
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gptkbp:reproduction
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Viviparous
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gptkbp:research_focus
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Study of primate behavior
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gptkbp:scientific_name
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gptkb:Trachypithecus_vetulus
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gptkbp:sleeping_habits
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gptkb:tree
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gptkbp:social_structure
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Troop living
Dominance hierarchy
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gptkbp:subspecies
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Northern purple-faced langur
Southern purple-faced langur
Western purple-faced langur
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gptkbp:tail_type
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Long tail
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gptkbp:territorial_behavior
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gptkb:battle
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gptkbp:threats
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Habitat loss
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gptkbp:vocalization
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Calls and grunts
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gptkbp:weight
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10 to 15 kg
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gptkbp:wildlife
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Managed in zoos
High in fragmented habitats
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gptkbp:young
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Infant
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gptkbp:bfsParent
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gptkb:Trachypithecus_vetulus
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gptkbp:bfsLayer
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5
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