Digestive system of humpback whales Digestive system of humpback whales The digestive system of humpback whales ("Megaptera novaeangliae") is adapted to digest tiny crustaceans such as krill, plankton, and small fish (including herring and mackerel) which the whale filters from the ocean using its baleen, a sieve-like structure in the upper jaw. Humpback whales belong to the parvorder baleen whales, which are carnivorous, seasonal feeders. The baleen, a sieve-like structure in the upper jaw made of keratin, is used to filter plankton, among other food sources, from the water. Ventral grooves are expandable concave furrows that line a whale's throat and have the peculiarity of
What Did the Ancient Israelites Eat? What Did the Ancient Israelites Eat? What Did the Ancient Israelites Eat? Diet in Biblical Times is a 2008 book by Nathan MacDonald that discusses the foods eaten by Israelites during the time that the Bible was written. MacDonald, a theologian who serves as a lecturer at St Andrews University, used biblical texts as well as archaeological and anthropological evidence in his attempts to determine the diet of the Israelites. MacDonald decided to write the book while writing another book on the symbolism of food in the Hebrew Bible that contained a chapter on the diet of the Israelites. Nathan