Why people believe they can't draw

Most people think they can't draw, but communications expert Graham Shaw isn't buying it. In this fun, instructional talk, he demonstrates how a few adjustments to your drawing technique (and your attitude) can leave you with an effective new presentation tool as well as an outlet for your creativity.

How animals and plants are evolving in cities

In cities, evolution occurs constantly, as countless plants, animals and insects adapt to human-made habitats in spectacular ways. Evolutionary biologist Menno Schilthuizen calls on peculiar beings such as fast food-loving mice and self-cooling snails to illustrate the ever-transforming wonders of urban wildlife -- and explains how you can observe this phenomenon in real-time, thanks to a global...