Jonathan Wong, Vancouver Aquarium

HuffPo has some fantastic photos and a video up from the Vancouver Aquarium. The species is Doryteuthis (once was Loligo) opalescens, sometimes called the inshore opalescent squid or market squid.

The video has great footage of the arms moving, chromatophores expanding, hearts beating, etc. Check it out!
(Let it be noted, though, that baby Humboldt squid (Dosidicus gigas) are even smaller and therefore cuter.)