Boundary

The find was made by a teenager. A "funny fossil" no one had seen before out in the middle of the Montana badlands. And right in the middle of controversy: the strangely shaped fossil could help explain one of the greatest mysteries of Earth's past, the great die-off at the KT boundary. It warranted a big dig, one that could lead to the mother lode, and professional mortality. But what Dr. Helen Sutter didn't realize was that it would take her al...