"This is actually a test showing how sponges pump water through themselves for filter feeding! They simply colored the water around them so you could easily see the process"
This is the greatest thing i've seen all week... (let not the fact that it is only 3pm on a monday here deter from how awesome this is...) sauce.
Plus, i want some of that dye. It kinda makes me think this is how a tiberium plant infestation would look. Some weird alien biological turbine generator...