Eastern Congo Grauer's Gorillas
Kasugho Highland Forest, Eastern DR Congo · Africa · rainforest
About this place
Examine Gorilla beringei graueri knuckle-walking wrist morphology, hindgut cellulolysis, and nightly nest engineering.
For kids: Meet gentle giant gorillas who walk on curled knuckles and weave a brand-new leafy bed every single night!
Eastern Congo Grauer's Gorillas · 360° Habitat Camp
What to look for
- Wild ginger & Marantaceae stems — Aframomum & hindgut fiber fermentation. Locate dense Aframomum and Marantaceae herbs fermented in the gorilla's enlarged colon
- Springy woven night nest — Arboreal/terrestrial thermoregulatory bed. Centre the woven foliage zone used for single-night insulated sleeping platforms
- Fruiting rainforest canopy — Endozoochorous megafaunal seed dispersal. Scan the upper fruiting crowns dependent on large-ape gut seed dispersal
Source: Kivell & Schmitt (2009), PNAS & Stewart, Pruetz & Hansell (2007) — Carpal biomechanics of knuckle-walking & great-ape nest construction.
Ask together: If you had to weave a cozy forest bed out of bendy branches and soft leaves in five minutes, how would you build the rim?
Field quiz
Kids' question: How often does a grown-up Grauer's gorilla weave itself a fresh leafy sleeping nest?
- Every single evening before going to sleep
- Only once when it turns ten years old
- Never—gorillas sleep hanging upside-down by their toes
Answer
Every single evening before going to sleep
Adults' question: Which anatomical adaptation protects a Grauer's gorilla's wrist joints during heavy terrestrial knuckle-walking?
- Extended dorsal metacarpal ridges and tightly interlocking carpal bones resisting hyperextension
- Fluid-filled pneumatic air sacs inside hollow finger bones
- Fused hoof-like keratin sheaths covering all five digits
- Cartilaginous suction pads beneath the palms
Answer
Extended dorsal metacarpal ridges and tightly interlocking carpal bones resisting hyperextension
360° photo: Dimitrios Savva (Photography), Jarod Guest (Processing), CC0
See it live: Live check: GRACE Grauer's Gorilla Forest Cam
- By day
- Grauer's gorilla family group foraging, grooming, & climbing forest trees Close-knit Grauer's gorilla groups exchange low-pitched 'belch vocalizations' during foraging to signal benign intent and maintain cohesion in dense foliage.
- By night
- Quiet equatorial Congo cloud-forest canopy & chorus of nocturnal tree frogs Equatorial 12:12 photoperiods synchronize nest building shortly before 18:00 local time, followed by twelve uninterrupted hours of rest.
Other language: Русский