... foraging mechanisms and extremely large body size to exploit unique ecological niches in the ocean. Scaling Odontocetes Mysticetes Diving Filter feeding Echolocation Fig. 2. Body size variation, evolutionary relationships and inferred feeding mode among cetaceans. (A) Cetacean...

...Laura N. Kloepper; John R. Buck; Adam B. Smith; Alexander Ya. Supin; Jason E. Gaudette; Paul E. Nachtigall ABSTRACT The odontocete sound production system is complex and composed of tissues, air sacs and a fatty melon. Previous studies suggested that the emitted sonar beam might be actively focused...

... nitrogen solubility in the specialized cranial acoustic fat bodies associated with echolocation in a Risso's dolphin; values (0.087 ml N 2 ml −1 oil) were 16% higher here than in its blubber (0.074 ml N 2 ml −1 oil). As the acoustic fats of all Odontocetes contain waxes, even if the blubber does...