More evidence that evolution has no preferred direction. The young sea squirt has a notochord and swims around. It seems to be a primitive chordate perhaps on its way to becoming a
real vertebrate. Yeah!
Instead of which it attaches itself head-down to the sea floor and spends the rest of its life acting more like a sponge.
The young sea squirt has a notochord and swims around. It seems to be a primitive chordate perhaps on its way to becoming a real vertebrate. Yeah! Instead of which it attaches itself head-down to the sea floor and spends the rest of its life acting more like a sponge. Presumably it is aiming for the post of Republican Senate leader...
(Back from vacation with some of my more immediate relatives)