The science teacher discusses features of weeds in his backyard and how their thorns are used by the plant to engage animals. Other methods that plants use to engage animals include appearance, scent, and the taste of their products. Mr....

Plants are amazing. Really! Photosynthesis is an incredible thing. But it also means that some plants can't live everywhere. They need to get the right amount of sunlight for the right amount of time. In this episode of Crash Course...

Urban development can be tough on wildlife. But some plants and animals are adapting to our cities in surprising ways. [3:21]