The early life stages of fish are marked by the rapid development of the digestive system, which plays a critical role in transitioning from endogenous nutrition, using yolk reserves, to exogenous ...

The digestive systems of mammals exemplify a remarkable spectrum of adaptations that have evolved in tandem with dietary specialisations. These adaptations encompass both morphological ...

When birds migrate over long distances to and from their breeding grounds, it takes more than strong flight muscles and an innate knowledge of where they're going. According to a University of ...