1 00:00:01,920 --> 00:00:06,720 Speaker 1: Welcome to brain Stuff production of I Heart Radio. Hey 2 00:00:06,800 --> 00:00:10,240 Speaker 1: brain Stuff Lauren vogel Bomb here with another classic podcast episode. 3 00:00:10,760 --> 00:00:13,600 Speaker 1: In this one, we delve into the important topic of 4 00:00:13,640 --> 00:00:16,680 Speaker 1: why some dog ears are so heck and floppy and 5 00:00:16,800 --> 00:00:21,720 Speaker 1: how it benefits them in the field. Hey brain Stuff, 6 00:00:21,760 --> 00:00:26,000 Speaker 1: Lauren Vogelbaum Here. When two convicts pulled a shawshank redemption 7 00:00:26,040 --> 00:00:29,760 Speaker 1: in and tunneled out of the Clinton County Correctional Facility 8 00:00:29,760 --> 00:00:32,720 Speaker 1: and upstate New York, a two year old bloodhound named 9 00:00:32,760 --> 00:00:36,680 Speaker 1: Jinny was hot on their trail. Working with James Pedolino 10 00:00:36,800 --> 00:00:39,800 Speaker 1: from the Rensselaer County, New York Search and Rescue Team, 11 00:00:40,080 --> 00:00:43,199 Speaker 1: Jinny and a number of other canines used their noses 12 00:00:43,280 --> 00:00:46,440 Speaker 1: to scour the vast Adirondack region hoping to pick up 13 00:00:46,479 --> 00:00:50,000 Speaker 1: the escape e scent. Pedolino said of bloodhounds in an 14 00:00:50,040 --> 00:00:53,280 Speaker 1: interview with an Albany, New York television station, they never 15 00:00:53,360 --> 00:00:56,000 Speaker 1: make a sound on the trail. All this loose skin 16 00:00:56,320 --> 00:01:00,520 Speaker 1: helps hold the scent. Bloodhounds, with their flop skin and 17 00:01:00,640 --> 00:01:04,839 Speaker 1: gangly ears are the quintessential tracking dogs, and there's good reason. 18 00:01:05,200 --> 00:01:08,319 Speaker 1: While all types of dogs, including German shepherds and labrador 19 00:01:08,400 --> 00:01:12,319 Speaker 1: retrievers can sniff out convicts, cadavers, and victims of disasters. 20 00:01:12,360 --> 00:01:14,720 Speaker 1: The dogs with floppy ears seem to be the best 21 00:01:14,760 --> 00:01:18,400 Speaker 1: at what they do. For one thing, regardless of breed, 22 00:01:18,640 --> 00:01:21,800 Speaker 1: dogs have amazing noses, with more than two hundred and 23 00:01:21,800 --> 00:01:25,400 Speaker 1: twenty million olfactory receptors. Experts say a dog's sense of 24 00:01:25,480 --> 00:01:28,160 Speaker 1: smell is thousands of times more sensitive than a humans. 25 00:01:28,640 --> 00:01:32,319 Speaker 1: In two thousand nine, researchers at Pennsylvania State University created 26 00:01:32,319 --> 00:01:35,840 Speaker 1: a computer model of canines nose to better understand how 27 00:01:35,920 --> 00:01:39,240 Speaker 1: dogs smell. They reported in the Journal of the Royal 28 00:01:39,240 --> 00:01:43,320 Speaker 1: Society Interface that each nostril pulls in air about five 29 00:01:43,400 --> 00:01:47,240 Speaker 1: times every second. The dog, it seems, knows which nostril 30 00:01:47,360 --> 00:01:49,960 Speaker 1: is pulling in the scent, allowing them to turn right 31 00:01:50,080 --> 00:01:54,160 Speaker 1: or left when tracking. Moreover, receptors continue to hold onto 32 00:01:54,160 --> 00:01:58,960 Speaker 1: scent molecules even after the dog exhales. But that being said, 33 00:01:59,120 --> 00:02:03,160 Speaker 1: dogs with floppy ears, such as bloodhounds, coonhounds, and bassett hounds, 34 00:02:03,280 --> 00:02:07,520 Speaker 1: are exceedingly good trackers. That's because their long ears act 35 00:02:07,560 --> 00:02:11,040 Speaker 1: as catchers mits scooping up invisible scent particles on the 36 00:02:11,040 --> 00:02:14,520 Speaker 1: trail and sweeping them towards the nose. The scent particles 37 00:02:14,560 --> 00:02:16,959 Speaker 1: also get trapped in the folds of wrinkly skin on 38 00:02:17,000 --> 00:02:20,440 Speaker 1: their faces, allowing the dog to carry reference samples as 39 00:02:20,440 --> 00:02:23,840 Speaker 1: they hunt. Long ears also tamp down a dog's ability 40 00:02:23,880 --> 00:02:26,880 Speaker 1: to hear far off sounds, forcing the dogs to rely 41 00:02:27,040 --> 00:02:35,040 Speaker 1: more on their sense of smell. Today's episode is based 42 00:02:35,040 --> 00:02:38,000 Speaker 1: on the article why decent hounds have long floppy ears 43 00:02:38,040 --> 00:02:40,480 Speaker 1: on how stuff works dot Com, written by John Paritano. 44 00:02:40,840 --> 00:02:43,079 Speaker 1: Greenstuff is production of by Heart Radio and partnership with 45 00:02:43,080 --> 00:02:45,440 Speaker 1: how stuff works dot Com, and it's produced by Tyler Clang. 46 00:02:45,840 --> 00:02:47,959 Speaker 1: Or more podcasts from my heart Radio, visit the I 47 00:02:48,040 --> 00:02:50,720 Speaker 1: heart Radio app, Apple Podcasts, or wherever you listen to 48 00:02:50,760 --> 00:02:51,600 Speaker 1: your favorite shows.