John Cancalosi / American toads (Anaxyrus americanus), several males competing to mate with female, Maryland, USA, April.

David Tipling / 2020VISION / Barn Owl (Tyto alba) female hunting over grazing marsh, Burnham Overy, Norfolk, UK, February. Did you know? During flight, the left ear of the barn owl captures sounds below while the right ear focuse...

Martin Dohrn / Pride of fifteen Lions listening for sounds of prey animals in the night. Image taken using 'Starlight Camera' technology abnd infra red light. Serengeti NP, Ngorongoro Conservation Area, Tanzania, Ea...

Tony Wu / Sperm whale (Physeter macrocephalus) nostril. This species have a single blowhole on the left side of their heads. The other nostril has been modified into an internal organ called the phonic lip that...

Bernard Castelein / Spectacled caiman ( Caiman crocodilis), mating display in which the male produces low sounds at a frequency which disturbs the water, Pampas del Yacuma Protected Area, Bolivia

John Cancalosi / American toads (Anaxyrus americanus), several males trying to mate with female, Maryland, USA, April.

John Cancalosi / American toads (Anaxyrus americanus), two males attempting to mate with female, Maryland, USA, April.

John Cancalosi / American toads (Anaxyrus americanus), males competing to mate with female, Maryland, USA, April.

David Fleetham / Great white shark (Carcharodon carcharias) biting on speaker that is producing low frequency sounds to attract the sharks off Guadalupe Island, Mexico.

Denis-Huot / serval (Felis serval) hearing the sounds around him to find a prey, Masai-Mara Game Reserve, Kenya

Bryan and Cherry Alexander / In the evening of the first day of the Chukchi 'Festival of the Young Reindeer', Tamara plays her family's sacred drum in their Yaranga (tent). The Chukchi believe that the sounds of the drum calms th...

Bryan and Cherry Alexander / In the evening of the first day of the Chukchi 'Festival of the Young Reindeer', Tamara plays her family's sacred drum in their Yaranga (tent). The Chukchi believe that the sounds of the drum calms th...