Forest ecologist Nalini Nadkarni, the Queen of the Forest Canopy, explains what 30 years of exploration have taught her about the intimate connection between humans and trees.

Famed screenwriter Charlie Kaufman and theoretical physicist Brian Greene dissect time as we know it. What is the smallest unit of time, and what does it look like? For starters, you should stop looking at the clock, and start looking at the universe.

What attracts us to a mate? Is "chemistry" really to blame for love at first sight? Biological anthropologist Helen Fisher explains the science behind our mating preferences.

Physicist Janna Levin and artist Laurie Anderson (NASA's first artist in residence) tackle the origins of our universe.

Writer Melissa Milgrom has a thing for stuffed animals, and we're not talking about your child's teddy bears. She's the author of Still Life and she explains the science of taxidermy.

Evolutionary psychologist David Buss explains the mating rituals and patterns of our quirky species. We might not have colorful peacock tails, but we've got some fancy strategies of our own to make up for it.

Award-winning filmmaker Shekhar Kapur and astrophysicist Piet Hut discuss what chaos is and what it means when it comes to the universe.

Eugenie Clark (aka the Shark Lady), recounts her more than 60 years as an ichthyologist. This week, she delves into some of the most extreme sea 'monsters' she's ever seen, like a giant 6-foot crab, and great white sharks.

Delve into the world of prebiotic and probiotic science. We talk to three people in the field and learn why keeping the good microbes in our bodies happy means a lot for health.

We visit the Go Green Expo and look at five interesting ways for city slickers to be eco-friendly.