A lot of ranchers may call themselves "Slime Biologists" or "Slime Scientists". I am not one of those, but in fact, I am a Tarr Biologist. In my highly sophisticated lab (which totally is not just a bunch of potato batteries), I perform tests on tarr. With my potato (wait no, computer), I ran a simulation of a tarr forming in slow motion. I will include it here.
https://youtu.be/BtmQs5V92-UIn the simulation, it showed something being injected into the tarr. This caused the tarr to compress into a tarr plort. I will continue to study this. Until then, other Tarr Biologists can post on here to document their work.