...supposed, by many cultures, to carry the weight of the world upon it's shell.
This via the "David Attenborough Channel" on Facebook; a turtle leaving hibernation.
Which recalls the old joke, wherein the Shaman or Priest after explaining the Turtle that carries the world upon his back, is pressed for what carries the turtle, and finally gives up in exasperation to exclaim "It's Turtles all the way down...".
Myth, sometimes impossible to explain, and then - in the dumbest of places you find it's origins.