Humans require few things as a species: food, water, shelter and knowledge? It turns out that we have an innate and unquenchable need to explore new things and search for new stimuli. Simply put, we possess a natural curiosity.
Since Charles Darwin published the theory of evolution by means of natural selection, myths and misinterpretations have eroded public understanding of his ideas. Ready to take another look at one of the related questions that just won't die? See more »
Thanks to our big brains, we humans have figured out ways to make food easily accessible (all 24 hours of the day). But in this era of obesity, can we pinpoint the very beginnings of when we started packing on the pounds -- and is it further back in time than the rise of fast food? See more »
According to DNA research, we may all have a common ancestor, an African woman who lived thousands of years ago. How did scientists reach this conclusion? Is it even possible? See more »
Depending on whom and when you ask, everything from same-sex smooching to punk music portends the end of Western civilization. Do any of these cultural commentators have a case? See more »
Over the past few years, scientists have noted thousands of species disappearing from the face of the planet. Are we undergoing another mass extinction? What's causing it? Can it be stopped? See more »
Scientists tricked male brown-tailed moths into trying to mate with one another instead of the females. But are sexuality and gender actually fluid concepts in the animal world? Explore animal sexuality, from intersexual clams to homosexual giraffes. See more »
Maybe you've noticed that a lot of unrelated marine animals have a torpedo-like body -- a dolphin may not be related to a small fish, but the shape of both species gets each one through the water quickly. On the other hand, two similar species can evolve into entirely different species. So what's going on here: convergent or divergent evolution? See more »
Evolution! Since its inception, the theory has spread both controversy and a new way of viewing our role on the planet. Where do the facts end and the fictions begin? See more »
Is there a magic equation to the universe? Probably not. But thanks to one man's obsession with rabbits, we have a sequence of numbers that reflect various patterns found in nature. See more »
Many of us don't have a clue as to what our great-great grandmother's name was. (No offense, great-great grandmas everywhere.) So imagine extending that family tree a few million years beyond that and seeing what our ancestors were up to. See more »
