ABSTRACT
Glossary ........................................................................................................................................ 133 References ..................................................................................................................................... 134
The diverse phylogenetic origins of marine mammals also offer scientists an important opportunity to better understand the complex interplay between diet (or “energy in”) and how marine mammals go about their aquatic lifestyles (or “energy out”). Biology has a long tradition of employing a comparative approach to understanding general underlying principles, and the marine mammals with their differing evolutionary histories, but convergent lifestyles are particularly valuable in this regard. By comparing and contrasting the diets and nutrition of marine mammals, we can learn a lot about how these inuence life-history strategies.
