The planet's trees have seen plenty of history pass by their trunks. In fact, they began to populate Earth 385 million years ...

I'm a little bit late in uploading this, but while I was up in Michigan I was able to take a trip to find some of the famous Petoskey Stones! These are Devonian age Hexagonaria Coral that are slightly ...

Petoskey stones have a larger, more symmetrical hexagonal pattern than Charlevoix stones. Rock collectors in northern ...