Some animals use diffusion instead of a circulatory system. examples include:
birds and jellyfish
flatworms and arthropods
mollusks and jellyfish
none of the above

not only is it colder, it also becomes darker, less salty, and more dense.

emerging idea only occurs as a raw idea that could appear out of nowhere. meanwhile, to reach scientific consensus , that idea must be structured and tested over and over again through various experiments. the scientific consensus transforms the raw idea into idea that is more reliable through the process of scientific elimination.

a chain link fence because there so tiny even my albino donkey can't get out