Oh, I don’t mean the “blood donation” being normal. The person I was responding to asked why they were being drained “this way”. I assumed they were concerned about the folded-over positioning of the crab.

Also, counter argument (in good fun): plenty of animals get their blood drained regularly in nature. Mosquitos, ticks, leaches, and vampire bats are a few examples of things that drain blood from others. Maybe the crabs see us as giant pests?

Defo not the best arrangement for the crabs though. As others pointed out to me, apparently despite the optimistic wording in the link I shared the process is still fatal to some. I’m glad we’re working on alternatives.