Category Archives: The Natural World

San Francisco Skyline at Night

Finding connections to nature in cities is key to healthy urban living

How does living in a big city, where there are relatively few opportunities to interact with the natural world, affect a person’s health? What’s it like to grow up in a place where city lights obscure the stars? This article explains why it’s important for urban dwellers to connect with nature.

Zebra mussel (Dreissena polymorpha) in pond

Invasive Species

When humans unknowingly interact with and alter the natural world, the consequences can be devastating. Find out how humans introduce plants and animals to ecosystems that aren’t prepared for them and what effects these invasive species have.