The Eocene cetacean genera Andrewsiphius and Kutchicetus are systematically revised,
their anatomy described, and their phylogenetic position analyzed. Each genus contains a …

Birds exhibit wide variation in their use of aquatic environments, on a spectrum from entirely
terrestrial, through amphibious, to highly aquatic. Although there are limited empirical data …

The origin of whales (order Cetacea) from a four-footed land animal is one of the best
understood examples of macroevolutionary change. This evolutionary transition has been …

We describe the bony and cartilaginous structures of five fetal skulls of Stenella attenuata
(pantropical spotted dolphin) specimens. The specimens represent early fetal life as …

During the past 50 years, the high acoustic sensitivity and the echolocation behavior of
dolphins and other small odontocetes have been studied thoroughly. However …

Cetaceans (baleen and toothed whales) present a unique set of adaptations for life in water.
Among other abilities, the two living groups can hear and produce different sound …

Cetacean body structure and physiology exhibit dramatic adaptations to their aquatic
environment. Fibroblast growth factors (FGFs) are a family of essential factors that regulate …

The auditory ossicles—malleus, incus and stapes—are the smallest bones in mammalian
bodies and enable stable sound transmission to the inner ear. Sperm whales are one of the …

Sirpa Nummela chapter 11 in this volume). Air and water are acoustically different media,
and good hearing in water is thus dependent on the morphological evolution of the ear …

The extinct mysticete fauna of the North East Atlantic is primarily known from the abundant
but fragmented Belgian specimens. Compared to the well‐preserved contemporary …