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Can marathoners break the magical two hour barrier?; 23andMe for Dogs; Killam Prize for engineering medical jello; and more

23andMe for Dogs; Can marathoners break the magical two hour barrier?; Exercise in a pill; The smallest race cars on the shortest racetrack; Killam Prize for engineering medical jello; Quirks & Question - Can cats really drink saltwater?
23andMe for Dogs; Can marathoners break the magical two hour barrier?; Exercise in a pill; The smallest race cars on the shortest racetrack; Killam Prize for engineering medical jello; Quirks & Question - Can cats really drink saltwater? 54:00