>> yeah, they're plums. [ laughter ] >> reporter: ethan and jefferhave been foraging for years. >> i think i was eating stuff off the ground when i was a kid >> reporter: they started following fruit in 2014. >> it always does. it's a new app for an old idea. >> reporter: the app is a map. red dots schott urban harvest compiled from city tree inventory asks thousand was people from all over the world. >> this tree is already on the map. >> jeff, guiding others to the harvest. >> each apcell a little different. >> reporter: so they can collect for themselves. >> my hands are full. [ laughter ] >> they mostly pick fruit from trees on public property. they always ask permission before colorado alone there are at least 212,000 entries on that fallen fruit app. >>> the pool in rio looks more set for st. patrick's day than the olympics. at 52, he is america's oldest olympian and bringing medals. >> the u.s. is widening its lead in the overall medal race. >> why the broncos have decide toin >>> the u.s. the overall medal count and also the top country when it comes to gold medals. the u.s.