Even the busiest of cities are buzzing with biodiversity. Take a virtual stroll through a city park for a close-up look at some of the inhabitants you otherwise might not notice.
You don't have to be a terrific artist to create a scientific illustration of a monarch butterfly—just willing to take your time researching and re-creating what you find. Learn how.
Why should you harness your house pets, be a smart shopper, and protect habitats? They're your jobs as a keeper of the Earth. Find out how else biodiversity depends on you.
Roll snake eyes, and you're on your way to survival. Land on the extinct box, though, and you're gone. Kaput. Finis. In this board game, your very survival is at stake!
If you can save this species from extinction, happy frogs will fly all over Meeps Island. So pack your imagination and drawing supplies into a kayak, and embark on one remarkable adventure.
Look for insects and plants in Belize's Blue Creek rain forest. Identify local animals during your next nature hike. And further explore biodiversity with these 12 kid-friendly titles.
You can tell a lot about your ecosystem by the kinds of birds that live in it. Create a simple feeder, and see how many of your feathered neighbors come to dine there.
Take a look a look at the world's most famous equation about the relationship between energy and mass.
Take your imagination on a wonderful, mind-bending trip with these "thought experiments" worthy of Einstein himself. With this train, it truly is all about the journey.
Where to begin when a Web search turns up millions of sites about Einstein? Let us point you to some of the best—from Time's person of the century profile to a black hole animation.