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Robin goes on a survival trek in the mountains of Wyoming.In Part Two of the New York City Marathon story, Lauren explains the importance of keeping cool.Film insert: warm-blooded vs. cold-blooded animals.Biography: How important is smell to guinea pigs? Biologist Benjamin Shepherd explains this principle to a group of schoolkids.THE BLOODHOUND GANG: ""The Case of the Frozen Blob, Part Two."" Mrs. Belmont-Smith is convinced that the ice sculpture has melted. But a quick taste proves that this melted blob came from the nearby ocean. This, plus a couple of hunches, leads Vikki to find the ice sculpture at a meat locker.