Studies surrounding the evolution of sensory system anatomy in cetaceans over the last~
100 years have shed light on aspects of the early evolution of hearing sensitivities, the small …

Background Unlike most mammals, toothed whale (Odontoceti) skulls lack symmetry in the
nasal and facial (nasofacial) region. This asymmetry is hypothesised to relate to …

Most dolphin species produce broadband clicks for echolocation (ie, biosonar pulses), and
whistles and burst-pulsed calls for communication purposes. A few dolphin species in the …

The diversity of the dolphin family was established during a short window of time. We
investigated delphinid skull shape evolution, mapping shapes on an up-to-date nuclear …

The transition to an aquatic lifestyle in cetaceans (whales and dolphins) resulted in a radical
transformation in their sensory systems. Toothed whales acquired specialized high …

Directional cranial asymmetry is an intriguing condition that has evolved in all odontocetes
which has mostly been associated with sound production for echolocation. In this study, we …

The modern pygmy and dwarf sperm whales (Physeteroidea, Kogiidae) are remnants of a
highly diverse group, which flourished in the Miocene oceans. Unlike their modern suction …

Toothed whales (odontocetes) emit high-frequency underwater sounds (echolocate)—an
extreme and unique innovation allowing them to sense their prey and environment. Their …

Odontocetes produce clicks for echolocation and communication. Most odontocetes are
thought to produce either broadband (BB) or narrowband high-frequency (NBHF) clicks …

Dwarf sperm whales (Kogia sima) are small toothed whales that produce narrow-band high-
frequency (NBHF) echolocation clicks. Such NBHF clicks, subject to high levels of acoustic …