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From 1991: Bill Geist travels Route 66, the "Main Street of America"

It's a storied American highway that traversed 2,400 miles beginning in Chicago, and not ending until it had to, at the Pacific Ocean. Bill Geist gets his kicks on a stretch of the historic Route 66 in New Mexico, riding along with Tom Snyder, author of "The Route 66 Traveler's Guide and Roadside Companion," and talks with Tom LaMance, proprietor of Swap Meet 66 in Prewitt, N.M., in a story originally broadcast on "Sunday Morning" July 28, 1991.

Study: Climate change killing summer oysters

A recent study from the University of Washington suggests that rising summer temperatures threaten triploid oysters, specifically bred in the 1970s to be more resilient to harsher environments. Despite that, researchers found that triploids die nearly 2.5 times faster than other oysters when under heat stress. Neil Thompson, geneticist for the U.S. Department of Agriculture Agricultural Research Service, joins CBS News to unpack the findings.

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