Wich kind of genetic perks need a gigant crustacean fauna to actually exsist?
That's my first post here so be gentle pls.
Context: i am worldbuilding a planet where the only fauna who exsisted was crustacean or insectoid, with lots of artificial of genetic alterations to make them bigger instread to evolve into other species.
I am thinking on oxygen, since the biggest insectoids on the earth to ever exsist have been during the phase with higher oxygen in the air. To solve this i though might be cool if they had some kind of pores in the shell wich ables them to take oxygen from all of its body, but not sure if its a valid solution or how it will work.
And the size, exoesqueletons might be cool, but they could handle thousands of tons of meat despite how thigh the crust might be? I though they could have skeletons inside aside the shell and not very mutch muscles and more like very big and strong tendons. But again, not sure if it's credible.
I am open to suggestions.
That's my first post here so be gentle pls.
Context: i am worldbuilding a planet where the only fauna who exsisted was crustacean or insectoid, with lots of artificial of genetic alterations to make them bigger instread to evolve into other species.
I am thinking on oxygen, since the biggest insectoids on the earth to ever exsist have been during the phase with higher oxygen in the air. To solve this i though might be cool if they had some kind of pores in the shell wich ables them to take oxygen from all of its body, but not sure if its a valid solution or how it will work.
And the size, exoesqueletons might be cool, but they could handle thousands of tons of meat despite how thigh the crust might be? I though they could have skeletons inside aside the shell and not very mutch muscles and more like very big and strong tendons. But again, not sure if it's credible.
I am open to suggestions.