The descent · On the rope

Sixty metres down
one tree.

You start above the forest roof and lower yourself to the river. Each stop is a different world, with its own light, air and animals.

HEIGHT ABOVE GROUND 45 m+
Harpy eagle
Macaws

STOP 1 OF 5

Emergent layer

A few giant trees break through the roof of the forest into full sun and wind. Only strong fliers and light climbers live this high.

Light
Full sun
Wind
Strong
Humidity
Lower

Who lives here

Harpy eagleMacawsButterflies

Notice: How far you can see: nothing above you but sky.

Guides for this layer

Why it works this way

The forest stacks itself around light.

Light is the prize

Trees race upward for sun. The canopy takes most of it, so each level below gets less.

Air changes with height

The top is windy and drier. Under the roof the air is still, warm and very humid.

Animals fit their floor

Wings for the open top, gripping tails for branches, strong legs for the ground.

Side by side

The five stops compared.

Typical pattern for a tropical rainforest, shown on a five-step scale.

Layer Height Light Wind Humidity
Emergent layer
45 m+
Full sun
Strong
Lower
Canopy
30–45 m
Bright, filtered
Moderate
High
Understory
5–20 m
Dim
Still
Very high
Forest floor
0–5 m
Very dim
Still
Very high
River
Water level
Open, bright
Light
Very high

You know the floors. Now meet who lives on them.

Watch the forest wake and rest, or open the guide library by layer.