@Rapidcreek@lemmy.world to politics @lemmy.world • 3 months agoDonald Trump complains about being called "cognitively impaired"www.newsweek.comexternal-linkmessage-square39fedilinkarrow-up1285arrow-down116
arrow-up1269arrow-down1external-linkDonald Trump complains about being called "cognitively impaired"www.newsweek.com@Rapidcreek@lemmy.world to politics @lemmy.world • 3 months agomessage-square39fedilink
minus-square@ArcaneSlime@lemmy.dbzer0.comlinkfedilink3•3 months agoAs a veteran scuba instructor, I have touched dozens of sharks with my bare hands. Every one had very rough skin, like medium sandpaper.
minus-square@Grabthar@lemmy.worldlinkfedilink3•3 months agoIndeed. Placoid scales are a defining feature of Elasmobranchs.
minus-square@theneverfoxlinkEnglish2•3 months agoI don’t know what to tell you, I’m petting a shark right now and it’s like touching silk. In both directions, couldn’t be smoother
minus-square@MeThisGuy@feddit.nllinkfedilink2•3 months agothat’s why they swim so smooth in the ocean. that or a few million years of evolution
Then you can pet it and feel how smooth it is
As a veteran scuba instructor, I have touched dozens of sharks with my bare hands. Every one had very rough skin, like medium sandpaper.
Indeed. Placoid scales are a defining feature of Elasmobranchs.
I don’t know what to tell you, I’m petting a shark right now and it’s like touching silk. In both directions, couldn’t be smoother
that’s why they swim so smooth in the ocean.
that or a few million years of evolution