Free Republic

He said: "There was a dude already on my seat. When the guy looked up, I thought: 'He looks like me'." But the pair were later to encounter a further coincidence when they checked into the same hotel in Galway. Mr Douglas added: "Later that night, I went to the pub and again, there was my twin. Total weirdness. We had a laugh and a pint."

Once upon a time, your origins were easy to understand. Your dad met your mum, they had some fun, and from a tiny fertilised egg you emerged kicking and screaming into the world. You are half your mum, half your dad – and 100% yourself. Except, that simple tale has now become a lot more complicated. Besides your genes from parents, you are a mosaic of viruses, bacteria – and potentially, other humans. Indeed, if you are a twin, you are particularly likely to be carrying bits of your sibling within your body and brain. Stranger still, they may be...

Snip ... Researchers were tagging great whites to study their movements. In the process, they tagged a nine-foot female, who left the area safely. Four months later, her tag was found on a beach near where she was first caught -- and the data tells a very interesting story. "It showed this profile going down the shelf to 580 meters, then a huge temperature change ... another living animal," said a Smithsonian researcher. Yes, it appears that the nine-foot great white was eaten. The big question? What ate her? Whatever it was, it had to be big enough to swallow...