Coping with copepods: do right whales () forage visually in dark waters?

North Atlantic right whales () feed during the spring and early summer in marine waters off the northeast coast of North America. Their food primarily consists of planktonic copepods, , which they consume in large numbers by ram filter feeding. The coastal waters where these whales forage are turbid, but they successfully locate copepod swarms during the day at depths exceeding 100 m, where light is very dim and copepod patches may be difficult to see.

Molecular Haeckel.

More than a century ago, Ernst Haeckel created embryo drawings to illustrate the morphological similarity of vertebrate early embryos. These drawings have been both widely presented and frequently criticized. At the same time that the idea of morphological similarity was recently attacked, there has been a growing realization of molecular similarities in the development of tissues and organs.