There are significant geographic gaps in our knowledge of marine mammal evolution
because most fossils have been found and described from Northern Hemisphere localities …

We present the first description of the endocranial cast of the small raoellid artiodactyl
Indohyus indirae. Raoellidae are sister group to Cetacea and the new morphological …

The enlargement of cetacean brain size represents an enigmatic event in mammalian
evolution, yet its genetic basis remains poorly explored. One candidate gene associated …

Bottlenose dolphins (Tursiops truncatus) make extensive use of narrowband whistles with
individually distinctive frequency modulations to broadcast their identity: the signature …

Mammals hear across a greater range of auditory frequencies than other vertebrates, which
was made possible through major modifications of sound transmission and processing …

Baleen whales (Mysticeti) are known to use low frequencies (LF; 200 Hz and below) and
infrasound (< 20 Hz) for communication. The lowest hearing limits of toothed whales …

The inner ear of the two higher clades of modern cetaceans (Neoceti) is highly adapted for
hearing infrasonic (mysticetes) or ultrasonic (odontocetes) frequencies. Within odontocetes …

Protocetid cetaceans were first described from the Eocene of India in 1975, but many more
specimens have been discovered since then and are described here. All specimens are …

The archaeocete family Remingtonocetidae is a group of early cetaceans known from the
Eocene of India and Pakistan. Previous studies of remingtonocetids focused primarily on …

This chapter reviews and summarizes the literature on the function of the vertebrate middle
ear from fish to mammals. The different issues associated with stimulating the inner ear of …