[ he takes his glass and a pastry, goes to get himself seated in turn. her tone earns an amused sound as he takes a bite and washes it down, but he shakes his head. ]

Actually, talking about it reminded me of something else I've been thinking about asking you. You're a biologist, right?

[ she's surely mentioned details before, but his grasp on the minutiae of the branches of biology are pretty fuzzy. ]