and the Field Museum of Chicago. "Before the time of dinosaurs, there was an age of ancient mammal relatives," Angielczyk said, according to Interesting Engineering. "Most of those ancient mammal ...

CHICAGO (CBS) -- When the Lions of Tsavo first arrived at the Field Museum of Natural History 100 years ago, they had been made into rugs. But taxidermists transformed them into the lifelike ...

Illinois’ commercial fossil trade is alive and well thanks to collectors who are motivated by money, science and the hunt — and who test the outer bounds of legality.