SMALL CHANGES. BIG CONNECTIONS.
What makes a habitat thrive?
Build it. Make a prediction. See what happens.
1 Predict2 Test3 Explain
Welcome, habitat explorer. Change one thing to start. Follow its effects through the food web.
YOUR ECOSYSTEM
Willow Creek Wetland

A little world. Everything is connected.
BELOW THE SURFACEPond snails
Snails graze on algae on submerged rocks and plants.
No snails in this habitatMagnified pond-bottom view
Where do these organisms live?
On the banks: grasses grow in wet soil; these fungi grow on decaying logs. On the surface: ducks float and lily pads rest on the water. Below: pond snails move over submerged surfaces. Bacteria also break down dead material, but are too small to see here.
Illustrations represent groups and are not to scale. The distant landscape is scenery; only the added groups and bars show simulated populations.
WATCH IT CHANGE
Habitat HealthReady to explore
Choose your conditions, then make a prediction below.
✦
Try a twist
Optional challenges · choose one, then predict02
What do you predict will happen?
One experiment · 5 yearsWatch the connections unfold.
03
Follow the connections
Explain My Habitat
What would you change next? Use evidence from the years above.