NEW ORLEANS — Mike Pereira made his way to a chair waiting for him inside a meeting room at the Convention Center here Thursday when he began to laugh at the crowd of media waiting for him.

That the pellet is indeed enclosed in a membrane can easily be demonstrated by compressing it carefully under a coverslip on a microscope slide. As pressure is applied the pellet first flattens ...

Discover how the development of microscopes has shaped our understanding of the senses, as Anwen Bullen explores the working of the ear. The inner ear has long fascinated biologists. It contains our ...