|Stingray hollows in soldier crab colony|
|Spine soldier crab uses to fight|
|Same soldier crab escaping|
Naturally, that set me wondering what kind of predator might be deterred by such a weapon. The usual cast of predators would not be deterred at all (kingfishers, ibis, toadfish and predatory crabs), however a newly identified predator may just be feel the spines, the moon snail - Conuba sordidum. Click here to go to a video of some moon snail and soldier crab encounters. The scientific paper on the topic is here.