@hugo@social.treehouse.systems The time scales are incomprehensibly amazing. As a side note, what bothers me about ”group X has existed for Y million years”, is that in evolutionary terms (”tree of life”) every single species living today had ancestors Y million years ago. Whether we call ancestors of currently living sharks ”sharks”, or the ancestors of currently living ostriches ”ostriches” (instead of dinosaurs), is just a matter of choice that has only little to do with the animals themselves.