Keeping non-native reptiles as pets is against the law – with good reason. Alien species traded on the black market can potentially establish themselves in the wild if they are released or escape.

One million alien visitors from another star system could already be lurking in the solar system. We aren't talking about "little green men" here, however — more "little (and not so little) gray rocks ...

A killer game of hide and seek.

A minute after I opened my computer, it started screeching. The three loud alarms were accompanied with flashing mushrooming blobs. I felt my heart clutch. No. No. NO-O-O-O-O! I was sure it was a ...