AnimaliaHighest rank in taxonomy. Groups all life into domains: Animalia, Plantae, Fungi, etc.IUCN LCInternational Union for Conservation of Nature — the world authority on species extinction risk, using standardized criteria. — Least Concern — widespread and abundant; not at immediate risk of extinction.ApprovedCurrent stage of this record in the editorial review workflow. Recent Sighting
Craugastor crassidigitus
Thick-fingered robber frog
Taylor, 1952
Detailed Texts Multi-lang
Medium-sized frog characterized by its prominent and thick digital discs, with skin ranging from smooth to slightly tuberculate, generally in shades of brown.
Added by
Anonymous Curator
Reviewed by
Julia Trouin
Last modified by
Julia Trouin
TaxonomyBiological classification ranks placing this species within the tree of life, from Kingdom down to Genus.
PhylumRank below Kingdom. Groups organisms sharing a fundamental body plan (e.g., Chordata = vertebrates and some invertebrates).Chordata
ClassRank below Phylum. Subdivides by structural traits (e.g., Mammalia, Aves, Reptilia, Insecta).Amphibia
OrderRank below Class. Groups related families sharing common ancestry (e.g., Carnivora, Primates).Anura
FamilyRank below Order. Groups closely related genera (e.g., Felidae = cats, Canidae = dogs).Craugastoridae
GenusRank just above Species. The first word in the two-part binomial scientific name.Craugastor
Taxonomic AuthorityThe scientist who first formally described and published this species, followed by the year of publication.Taylor, 1952
Record Completeness
94%Coming soon
Ecology & StatusHow this species lives: habitat preferences, diet, behavior, population status, and role in its ecosystem.
OriginWhether the species is native (evolved here), endemic (found only here), or introduced by human activity.
Native
Population TrendDirection of change in population size over time: increasing, stable, decreasing, or unknown.
Stable
Breeding SeasonTime of year when this species typically reproduces or flowers.
Year Round
Trophic RolePosition in the food chain: producer, herbivore, carnivore, omnivore, decomposer, or parasite.
Carnivore
Recent SightingsWhether this species has been observed in the wild in Costa Rica within recent years.
Yes
Habitat SummaryOverview of the specific ecosystems and environments where this species is found in Costa Rica. Multi-lang
Inhabits mainly the floor and low vegetation of humid lowland and foothill forests in Central America.BehaviourDaily activity patterns, movement, territory use, foraging style, and seasonal behavioral changes. Multi-lang
Mainly nocturnal, active in mulch and low plants.Social ActivitySocial structure: whether the species is solitary, paired, or colonial; hierarchy and communication. Multi-lang
Solitary, usually found near streams or in very humid areas.Feeding GuildWhat the species eats, how it forages or hunts, and its role as a consumer in the food web. Multi-lang
Hunts by ambushing small invertebrates.Trophic Chain DetailsSpecific interactions in local food webs: prey species, predators, competitors, and scavengers. Multi-lang
Feeds on various soil arthropods.Reproductive BehaviourMating strategies, courtship displays, nesting or spawning behavior, and parental care. Multi-lang
Reproduction by direct development on the ground.Physical Measures
Length (cm)
3.0 - 5.0 cm
Weight (Grams)
5 g - 20 g
Offspring per cycleTypical number of young (live births, eggs, or seeds) produced by one adult in a single reproductive event or breeding season.5 - 20
Sexual DimorphismObservable physical differences between males and females of the same species (e.g., size, coloration, features).Yes
Lifespan
Sexual MaturityAge at which the individual becomes capable of reproducing for the first time.
1 Years
Gestation / IncubationDuration from fertilization to birth (mammals) or to hatching (egg-laying species).
20 - 30
Lifespan EstimatedExpected duration of life from birth to natural death under wild conditions.
Males--
Females--
Sexual DimorphismPhysical differences in size, coloration, or morphology between males and females of this species.
Males Multi-lang
Presents moderate vocal sacs for its calls.
Females Multi-lang
Larger size than the male and more rounded body.
Evolutionary AdaptationsInherited traits and behaviors that improve the species' survival and reproduction in its specific environment. Multi-lang
Direct development that allows it to reproduce without depending on permanent bodies of water.
Main ThreatsDocumented pressures reducing the population: habitat loss, hunting, disease, climate change, and invasive species. Multi-lang
Forest fragmentation and the impact of climate change on microhabitat moisture levels are key risks.
Interesting FactsSurprising or notable facts that highlight what makes this species unique or ecologically important. Multi-lang
Its thick digital discs allow it to adhere very effectively to leaves and moist surfaces in the dense forest.