This chapter reviews echolocation signals of bats and toothed whales. It addresses
mechanisms of sound production and reception, signal structure, patterns of call production …

Nature provides an infinite source of inspiration for innovative designs that may be required
to tackle the social, economic, and environmental challenges the world faces. Despite the …

Bioinspiration—using insights into the function of biological systems for the development of
new engineering concepts—is already a successful and rapidly growing field. However, only …

Significant effort has been devoted to designing clustering algorithms that are responsive to
user feedback or that incor-porate prior domain knowledge in the form of constraints …

All bats use acoustic signals for passive listening to ambient sounds and for intra-and inter-
species communication. In addition, most bats have evolved an active sonar system that …

Big brown bats emit brief frequency-modulated (FM) biosonar signals in the 20–100 kHz
frequency band. They use a unique delay-based processing method to focus target images …

Despite all other craniodental adaptations, the head of most bats must function as an
ultrasonic emitter and receiver. Not all echolocation calls are ultrasonic, but all either are …

Cell morphology is an important regulator of cell function. Many abnormalities in cellular
behavior can be discerned from changes in the shape of the cell and its organelles, typically …

Horseshoe bats (family Rhinolophidae) have sophisticated biosonar systems with outer ears
(pinnae) that are characterized by static local shape features as well as dynamic non-rigid …

Horseshoe bats can actively change the shapes of their noseleaves and outer ears on time
scales that are comparable to the duration of the biosonar pulses and echoes. When the …