“I own this thing,” Alan Detrich recalled telling a museum director. “It is mine. I can do whatever I want.”

The dinosaur, named Scotty, was excavated in central Canada in the 1990s. A recent study shows that it is the heaviest a...

Fiberglass, resin, glue, feathers and new technology bring the dinosaur to life at the Museum of Natural History.

Make way for Tyrannosaurus rex, everyone’s favorite killer. A new show at the American Museum of Natural History places...