profile view of infant horseshoe crab nursery tank in laboratory

blue blood medicine medical research animal cruelty raise raised supply demand natural coarse marine brackish water arthropod aqueous environment chelicerate transparent carapice tail xiphosura endangered hunted collected vaccine drug testing population decline bled raised lal limulus amebocyte lysate studies study conservation groups recombinant factor life research healthcare health tiny miniature telson spawned spawning life cycle atlantic states marine fisheries division low energy clean clear still