Here is the astonishing creature found inside a 200 million-year-old leech cocoon

It's pretty hard to find a fossil of something that's completely squishy and tiny. Without bones or exoskeletons, there's not a lot from many microorganisms that gets preserved. But a 200-million year old cocoon has shown us a glimpse at an ancient microorganism that looks incredibly similar to some modern examples. »12/07/12 4:40pm12/07/12 4:40pm