Reprise of 2016 Woodpeckers with Stephen Shunk A Way to Garden With Margaret Roach June 26, 2020
America, however, we have several migratory woodpecker species. Most of the sap suckers are migratory yellow-bellied step soccer, which comes through your area happens to be the most migratory would pick in the world. Oh, see I didn't know if he was just kinda deeper in the woods. You know like certain birds like junk owes for instance I see them around, but neighbors even further into the woods in little, even more rural than I. See them more, so I didn't know if they were nearby or what? but. Most most of the yellow bellied sap suckers breed across the boreal forest. That's Kinda the Middle Tier of Canada, but they breed all the way up as far as eastern Alaska then they migrate mostly down the east of the Rockies, and they go as far as Panama. And there are even a handful of Records for Columbia. Wow! That's a lot of territory. Okay okay because you know I just. I I. Didn't I didn't know I knew it was the one that I. don't see as much and I wasn't sure if it was at all so good, that's that's very interesting, but most of them are sedentary. Okay good. That's it most most of them said Terry, and so you see a sick species probably. Around in the east, and that would include the downy hairy. Flicker red bellied. Red headed. In palliative and I. Don't see the red headed where I am, but if I go across if I go biking, hour or so away I see I. See I would see them more more common. That's definitely a drive. It's worth seeing. This worsening and worth driving for yeah. So I read in the new book. In in your new book that. The packers like incredibly impact, withstanding physiology has inspired like safer motorcycle and football helmets, and even help medical research on Shaken Baby Syndrome. I mean. What kind of force are we talking about I? and. Give me some examples of what they're doing. This is probably one of the best examples of adaptation in the Animal Kingdom and woodpeckers are definitely one of the most specialized bird families in the world. And Woodpecker hits his head against a tree. It's exerting about five hundred gs of force. In order for us to do the same, we would have to hit our heads against a brick wall, going sixteen miles an hour. So, we would. We would not survive that. We might very very silly idea, right? and. Back to the football and motorcycle, helmets when we have a motorcycle accidents, or when we crash our head against another football players had both of US wearing helmets. Are. We are subjected to more G. force than we really should be. Exposed to. And so I'm sure you've heard this especially in football of. high incidence of Brain Injury Char in football players, and so you know there's a lot of money spent trying to make football safer sport, and so we study woodpeckers. If woodpeckers can do this hammer, their head begins trees. pull him, Jesus Force without getting any kind of injury then there's some definitely something to be learned there. So what are some of the sort of woodpeckers secrets that you know? How does it work? What what are the anatomical factors that help them withstand that impact? One of the most important is that would. Pickers have very little cerebrospinal fluid in their cranial cavity. In contrast humans have. A bit of three spinal fluid that allows our brain to actually A little bit inside there, and this is what causes us to get concussion so easily. When we hit our heads, say in a traffic accident we. Are had slammed forward there. Our Brain slams against the inside of our skull. Because of that step space in right known as sub ARACHNOID SPACE And Then, it bounces back against the back of our skull. Right giving us what we call a contract coon injury, or we can get two concussions out of that. But the Woodpecker has. Very little cerebrospinal fluid in the brain cavity, preventing the brain from sloshing around it also has sort of spongy like grown in the frontal bone and accessible bone of the skull. It's not. Like a soft sponge, but it's very low density and the The I guess you could say fibers of the bone, the bony fibers in those parts of the brain help disperse energy, and thereby absorb shock.