Sand Krakens - WIP

Eventually, a sand kraken grows too large for its body to be pulled by its tentacles across the sand any longer.
  When this happens the sand kraken begins to quickly dig out a large hole round itself until only its head and tentacles are uncovered.
  The pressure of the sand around the body of the sand kraken drastically slows the speed the sand kraken's body grows.
  The sand kraken's tentacles continue to grow, allowing the sand kraken to still reach its prey in its new stationary method.
  **Death** Many elder sand krakens become a stationary meal for purple worms under the sand, or die from a lack of food. When this happens the outter shell of the elder sand kraken begins a self fossilization process by excreeting a petrification poison over its outtershell.