Horseshoe

I made this:

By getting hooked up like this:

And felt a kinship with this:

Just as I used to believe that spare ribs were surgically removed from pigs, I used to belive that  Horseshoe crabs were "donating" their blood, like cows being milked or sheep being shorn.

To my horror, while Googling around for photo-analogies to stem-cell donation, I've come to believe that the crabs are, in fact, being exsanguinated (like, to death), since the pictured bottles are (1) about the volume of a crab's entire innards and (2) not exactly being carefully metered. Shudder.