Follow your curiosity

What discovery has been shared with you?

FACTREE gives you something interesting to discover every day — and something worth talking about together.

Start with one fact. Explore it, go deeper, then follow whichever branch catches your imagination.

Choose subjects for a surprise

Exploring any topic

Begin your discovery

Your next discovery is one click away.

Choose one or more subjects above, or leave Any Topic selected and let curiosity decide.

Environmental Science

Why Riparian Buffer Zones Maintain Stream Health and Biodiversity

Quick fact

A strip of trees and shrubs just 10–30 meters wide can remove up to 90% of nitrogen and phosphorus from runoff before it reaches the stream.

Why this is interesting

Picture a stream without its trees—clearer, maybe, but might be a silent crisis. Why does a green ribbon of plants make the difference between a thriving stream and a lifeless ditch?