It’s 5 o’clock, and you’re leaving the office in search of some post-work libations and snacks before dinner. You could go the traditional happy hour route — where you’re limited to a few drinks and small bites within a short window of time — or you could up the ante and visit a Japanese izakaya.
Prawns will rub themselves when dabbed with acid. And hermit crabs show stress-related behavior after getting shocked out of their shells. Now scientists find that British shore crabs can learn to avoid an electric shock — a key sign that crustaceans really do experience pain.