Museum of the Rockies

600 W. Kagy Blvd., just south of downtown Bozeman, Mont. $14.50 adults, $9.50 ages 5-17. museumoftherockies.org, 406-994-2251.

Royal Tyrrell Museum

1500 N. Dinosaur Trail, Drumheller, Alberta, near Calgary, Canada. $18 adults, $11 ages 7-17. www.tyrrellmuseum.com. 888-440-4240.

Field Museum

1400 S. Lakeshore Dr., Chicago, www.fieldmuseum.org, 312-922-9410.

Royal Ontario Museum

100 Queen's Park, Toronto. $17 adults, $14 ages 4-14, www.rom.on.ca, 416-586-8000. EndText