Malaysian Borneo · real-time 3D
Rimba Kita
“Our forest.” A walk from the top of a Bornean rainforest to its floor — and sixteen of the trees that live there.
04 families · 08 genera · 16 species
A constellation of names.
Every species hangs from a genus, every genus from a family. Hover a star to trace its lineage; click it to open the record. The branches lean towards your cursor.
Hover a star
Trace a lineage
Sixteen portraits
Faces of the forest.
Scroll faster and the forest leans · hover to slow down · click to open
Di · pteron · karpos
Two wings, one spin.
Dipterocarpaceae is Greek for “two-winged fruit”. The wings are enlarged sepals; as a fruit falls they make it autorotate like a helicopter, slowing its descent so the wind can carry it a little further.
- Click anywhere in the crown to release a fruit.
- Move your cursor left or right — that is the wind.
- Stretch the wings and watch the fall slow down.
- Descent speed
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- Wind
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- Drift from 30 m
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- Landed within 10 m
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Toy model, not measured data: a 5 g fruit with two 2 cm-wide wings; descent speed from a drag balance, so it scales with the square root of wing loading. Fruit drawn enlarged; playback 2×. A field study in Sepilok found 90% of dipterocarp seeds landed less than 10 m away. Sources:
The field guide
Sixteen trees, up close.
After dark
Night walk.
Your cursor is a torch. Sixteen specimens are hidden on the forest floor — light them up and click to collect them.
0 / 16 found
Every specimen found. The forest keeps its secrets well — you found them anyway.
Test your eye
Name that family.
Eight photographs, four families. Pick the family each tree belongs to.
Your field notebook
Record what you saw.
Drop in a photo and a few notes. Entries are saved only in this browser — nothing is uploaded anywhere.