Five things you need to know today, and learning from an octopus

Good morning, Boston. Here are the five things you need to know to start your busy workday, plus Biogen, brownies, a better Boston and lessons from an octopus. Mass. colleges to require boosters Grant Welker reports that these Massachusetts colleges and universities are among the first to require Covid-19 booster shots for students and staff ahead of the spring semester. Mental-health dollars pouring in State officials have responded to a behavioral health crisis confronting hospitals and treatment…