If you want to get an idea of just how alien and bizarre an extraterrestrial might look like, consider the creatures that used to live right here on Earth some 500 million years ago.

Alt med practitioners want "natural" to be synonymous with "good for you" and unnecessary to regulate. But natural can also be dangerous and alt med treatments might not be what they appear.

Sometimes believers don't proselytize because they're sure they have the truth. It's because they need affirmation of their beliefs.

In a universe where everything is made of chemicals, "natural" is just a buzzword used to make a bigger profit.

Sometimes you only know the impact of something when it's gone. Does that apply to humans as well?