@Rapidcreek to politics • 5 months agoDonald Trump complains about being called "cognitively impaired"www.newsweek.comexternal-linkmessage-square40arrow-up1285arrow-down116
arrow-up1269arrow-down1external-linkDonald Trump complains about being called "cognitively impaired"www.newsweek.com@Rapidcreek to politics • 5 months agomessage-square40
minus-square@[email protected]linkfedilink3•5 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@Grabtharlink3•5 months agoIndeed. Placoid scales are a defining feature of Elasmobranchs.
minus-square@[email protected]linkfedilink2•5 months agothat’s why they swim so smooth in the ocean. that or a few million years of evolution
minus-square@[email protected]linkfedilinkEnglish2•5 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
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.
that’s why they swim so smooth in the ocean.
that or a few million years of evolution
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