The cetacean nose presents a unique suite of anatomical modifications. Key among these is
posterior movement of the external nares from the tip of the rostrum to the top of the head …

Though narwhal have survived multiple ice ages, including 2.5 Ma and the last interglacial
period with warming temperatures, Arctic climate change during the Anthropocene …

Keratins are the main intermediate filament proteins of epithelial cells. In keratinocytes of the
mammalian epidermis they form a cytoskeleton that resists mechanical stress and thereby …

Abstract The transition in Mysticeti (Cetacea) from capture of individual prey using teeth to
bulk filtering batches of small prey using baleen ranks among the most dramatic …

This paper redescribes the holotype skull of the aristonectine elasmosaur Morturneria
seymourensis from the upper Maastrichtian of Seymour Island, Antarctica. This description …

Marine mammals are key components of aquatic ecosystems. Feeding strategies identified
in extant cetaceans, pinnipeds, sirenians, marine otters, and polar bears are associated with …

Baleen whales face the challenge of finding patchily distributed food in the open ocean.
Their relatively well-developed olfactory structures suggest that they could identify the …

A fascinating look at the diverse reproductive strategies of numerous female mammals, from
hyenas to goats, kangaroos to whales. Newborn mammals can weigh as little as a dime or …

Modern baleen whales are unique as large-sized filter feeders, but their roles were
replicated much earlier by diverse marine reptiles of the Mesozoic. Here, we investigate …

The origin of baleen and filter feeding in mysticete cetaceans occurred sometime between
approximately 34 and 24 million years ago and represents a major macroevolutionary shift …