It’s a silly thing, but if hair predates the mammalian lineage I would like to see a source. My education is as much"of its time" as the people my current age was while I was in college, so I could very well be ignorant, but true hair (not invertebrate fuzz) was a mammalian trait when I was in school.
Also “millions of years earlier” isn’t much in the tree of life, is your claim that other extinct branches of the “tree of life” before mammalian divergence shared similar structures to mammalian hair? If that’s what you’re stating I’ll concede it may have predated mammalian divergence, but in no significant amount.
Hair goes back millions of years earlier, but I would NEVER think of critiquing your magnificent coiffure, Don Juan. 🙂
It’s a silly thing, but if hair predates the mammalian lineage I would like to see a source. My education is as much"of its time" as the people my current age was while I was in college, so I could very well be ignorant, but true hair (not invertebrate fuzz) was a mammalian trait when I was in school.
Also “millions of years earlier” isn’t much in the tree of life, is your claim that other extinct branches of the “tree of life” before mammalian divergence shared similar structures to mammalian hair? If that’s what you’re stating I’ll concede it may have predated mammalian divergence, but in no significant amount.