Evolution

Author Annalee Newitz (Gawker Media's Gizmodo editor-in-chief) talks to us about Earth's 5 mass extinctions, as well as the possibility that we live in one right now.

When peering thousands of years into the future, there are certain things we can count on -- evolution, extinction, plate tectonics, climate change and, quite possibly, the eruption of a supervolcano. What else does the Earth's far future hold?

By William Harris

Let's assume that long ago Homo sapiens communicated by grunting at one another. How and when did all those grunting sounds evolve into a verb tenses, clauses and proper nouns?

By Charles W. Bryant

Imagine a time in Earth's far-flung past when organisms didn't swim through the oceans or populate the lands. Even the mighty dinosaurs hadn't arisen. Will the planet ever return to that lifeless state?

By Robert Lamb

When a basketball superstar makes a 3-pointer, the multimillion-dollar paychecks go into his or her bank account. But why don't his or her parents get the glory? After all, didn't they provide the DNA that allowed for such incredible success?

By Molly Edmonds

We don't admit to breaking up with someone because of his looks, or that we've read our boss's private e-mails. We answer "fine" when someone asks how we are, even if we're not fine at all. Why is polite society all about the big fib?

By Molly Edmonds

A mass extinction on Earth is long overdue, according to population ecologists. Find out what Earth's fossil record may be telling us about our future.

By Josh Clark

We can see dinosaur and plant fossils at just about any natural museum. What exactly are fossils, though, and how do they form?

By Austin Henderson

Evolution is fascinating because it attempts to answer one of the most basic human questions: Where did life, and human beings, come from? The theory of evolution proposes that life and humans arose through a natural process.

By Marshall Brain

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?

By William Harris & Sascha Bos

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?

By Robert Lamb

A new global report says 1 million species are at risk of extinction - the greatest number in human history.

By Jonathan Strickland

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?

By Josh Clark & Desiree Bowie

Have you ever done something for someone else just because it was a nice thing to do? Do people perform unselfish acts because it feels good or is it just something society wants us to do?

By Josh Clark

Symbiosis is crucial to the survival of many species. In fact, you're a symbiote yourself.

By Ed Grabianowski

When Australia became separated from the other continents, its species evolved in isolation. And yet, some of the Australian animals evolved in exactly the same way as the other animals in the world. How?

By Ed Grabianowski

Have you ever seen a baby with a tail? How about a whale with legs? Believe it or not, these things happen. They're called atavisms, and they might help us figure out evolution.

By Katie Lambert

The Galapagos Islands may have played a grand role in Darwin's theory of evolution, but they're notable for more than their finches. What strange species populate these remote islands?

By Maria Trimarchi

Everyone knows that humans require food, water and shelter, but what about knowledge? It turns out that we have an innate, unquenchable need to seek out new things and new stimuli. Aren't you curious?

By Josh Clark

If wisdom teeth are so wise, why do they keep sprouting in the gums of people who don't need them anymore? Should a lack of wisdom teeth give you bragging rights as a highly evolved human?

By Molly Edmonds

A gulf of difference may separate our human world of empires, science and spirituality from the animal wilds of the other great apes. But the genetic differences are pretty meager.

By Robert Lamb & Desiree Bowie

Everything has to start somewhere, including us humans. But where? Was it Africa, or were there multiple ground zeros for humanity's explosive growth and eventual world domination?

By Robert Lamb

Natural selection is the idea that organisms that are best suited to survive pass their traits down. Is it true that only the strong survive?

By Ed Grabianowski

Where did humanity begin, and how did we get to where we are now? Did we really all begin in Africa? What made us leave?

By Ed Grabianowski

Polar bears evolved to blend in with the terrain so they could hunt better. What causes one group of animals to split off from the rest of the species and develop new genetic traits?

By Josh Clark