Over the centuries, natural history museums have evolved from being little more than musty repositories of stuffed animals and pinned bugs, to being crucial generators of new scientific knowledge. They have also become vibrant educational centers, fu...

The landscape of southwestern Wyoming around the ghost town of Fossil is beautiful but harsh; a dry, high mountain desert with cool nights and long, cold winters inhabited by a sparse mountain desert community. But during the early Eocene, more than...

Gems are objects of wealth, icons of beauty, and emblems of the very best of everything. They are kept as signs of prestige or power. Given as tokens of love and affection, they also come in a kaleidoscopic array of hues and can be either mineral or...