This Acanthophrynus coronatus just molted, and you can see his size compared to his discarded exuvia. He’s huge but still not full grown!
Amblypygids and some other arachnids take on that blue coloration after molting because they have copper-based blood, just like their horseshoe crab cousins. Over the next few days his pale, squishy exoskeleton will harden and return to its normal colors.











