WEBVTT 00:00:00.000 --> 00:00:01.380 Did you guys know that 00:00:01.380 --> 00:00:03.182 chickens are made out of magic? 00:00:03.348 --> 00:00:06.968 (intro music) 00:00:06.968 --> 00:00:09.806 Hey guys! So is a Mercedes-Benz like a chicken? 00:00:09.806 --> 00:00:12.346 or is a chicken like a Mercades-Benz? 00:00:12.699 --> 00:00:13.701 Confused? 00:00:13.701 --> 00:00:14.792 Watch this. 00:00:14.792 --> 00:00:23.307 (music) 00:00:23.572 --> 00:00:25.522 Its a new Mercedes-Benz ad 00:00:25.522 --> 00:00:28.368 which features a new stabilization system 00:00:28.368 --> 00:00:30.598 as advanced as a chicken's head. 00:00:30.598 --> 00:00:32.652 These chickens are demonstrating their 00:00:32.652 --> 00:00:34.497 Vestibulo-ocular reflex 00:00:34.497 --> 00:00:36.438 It's the ability that chickens use 00:00:36.438 --> 00:00:38.578 to stabilize their vision while their 00:00:38.578 --> 00:00:39.671 body moves! 00:00:39.963 --> 00:00:41.273 Allow me to demonstrate. 00:00:41.273 --> 00:00:42.663 Stare at this eye while 00:00:42.663 --> 00:00:44.804 moving your head around in circles 00:00:44.804 --> 00:00:46.177 like a crazy person. 00:00:46.177 --> 00:00:47.502 What did you notice? 00:00:47.502 --> 00:00:49.325 While your head moves every which way, 00:00:49.325 --> 00:00:51.233 your eyes stayed in relatively 00:00:51.233 --> 00:00:52.357 the same position. 00:00:52.357 --> 00:00:54.483 this is how we stabilize our eyes 00:00:54.483 --> 00:00:56.478 in order to process an image. 00:00:56.478 --> 00:00:58.423 light shines through our pupil 00:00:58.423 --> 00:01:00.798 into the retina in the back of our eye. 00:01:00.798 --> 00:01:02.648 creating a retinal image. 00:01:02.648 --> 00:01:04.863 If our eyes move too quickly, 00:01:04.863 --> 00:01:07.142 we do not give our eyes enough time to 00:01:07.142 --> 00:01:08.695 process the retinal image. 00:01:08.695 --> 00:01:10.905 Therefore, giving us blurry vision. 00:01:10.905 --> 00:01:13.489 We stabilize our vision through maintaining 00:01:13.489 --> 00:01:14.522 our eye position 00:01:14.522 --> 00:01:16.715 and chickens stabilize their vision 00:01:16.715 --> 00:01:19.148 through maintaining their head position. 00:01:19.148 --> 00:01:20.334 chickens don't have the same 00:01:20.334 --> 00:01:21.904 ocular motor control as us 00:01:21.904 --> 00:01:24.221 so, they have evolved the muscles 00:01:24.221 --> 00:01:26.299 in their neck and their head 00:01:26.299 --> 00:01:28.200 to stabalize what they see. 00:01:28.200 --> 00:01:30.572 Not only do birds have stabilized heads, 00:01:30.572 --> 00:01:33.395 but other animals do too, like cats. 00:01:33.687 --> 00:01:36.167 It just doesn't look as cool when you move them around 00:01:36.167 --> 00:01:38.632 cause chickens have that long neck! 00:01:38.632 --> 00:01:39.687 Alright, well I'll see you 00:01:39.687 --> 00:01:41.204 hairy mammals tomorrow. 00:01:41.204 --> 00:01:42.526 Be sure to check out the other 00:01:42.526 --> 00:01:43.966 episodes over here, 00:01:43.966 --> 00:01:46.096 and don't forget to subscribe! 00:01:46.096 --> 00:01:46.906 Ill see ya! 00:01:46.906 --> 00:01:48.443 Byeeee 00:01:48.763 --> 00:01:50.318 I wanna know what your favorite 00:01:50.318 --> 00:01:51.468 animal eye is! 00:01:51.468 --> 00:01:53.127 Mine is the chameleon. 00:01:55.547 --> 00:01:59.000 (foot steps)