What cats and dogs hear + A 'smell map' of the nose
Summary
Dr. Pete Shifley explains how dogs and cats hear higher frequencies than humans due to specialized ear hair cells, noting risks like noise-induced hearing loss and congenital deafness in breeds like Dalmatians. Later, Dr. Bob Data reveals a newly discovered spatial map of smell receptors in mouse noses, challenging the belief that olfactory organization is random. This precise arrangement could aid future treatments for humans who have lost their sense of smell.
Topics discussed
Sponsors and show introduction
Listener question on animal hearing range
Biological basis of dog and cat hearing
Noise-induced and congenital deafness in pets
Amazing hearing in elephants and marine mammals
Break and sponsor messages
Introduction to the new smell map study
Challenges in mapping olfactory receptors
Discovery of precise receptor stripes in the nose
Interpreting the organization of the smell map
Implications for treating smell loss
Closing remarks and final sponsor
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