Thanks so much

I’m interested in batteries/energy storage science and want to know who’s the big players in R&D big picture stuff, so yeah cars included but that’s not like my specific interest.

Blue blood from a horseshoe crab yes. Blue crabs are also a thing and horseshoe crabs are always referred to with the word horseshoe in front. So calling them just crabs with the word blue in front is a poor choice if one cares about communication.

Horseshoe crabs not blue crabs