Snakes evolved a lung-based auditory system found in no other land vertebrate

Evidence

In snakes there are two sensory systems reacting to airborne sound and to substrate vibration. In Colubridae, Crotalidae, and Boidae, the auditory system has a U-shaped frequency–threshold curve that ranges from 150 to 600 Hz. The auditory system of snakes is 20 dB less sensitive than the human auditory system to stimuli produced on the head and along the body. The lung system seems an important part in the auditory system of snakes, representing a novelty in land vertebrates, as experimentally proved by Hartline (1971). — Almo Farina, Soundscape Ecology, 1792

Categorization

• XREF: connects to: Fish ears evolved from a pressure-sensing swim bladder linked to an otolith — George Michelsen Foy, Zero Decibels: The Quest for Absolute…, 341; The middle ear evolved as an impedance transformer to bridge air-water sound energy loss — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 733; Sensory efficiency has driven animal evolution and survival — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 63 (+2 more)

Broader Connections

• Fish ears evolved from a pressure-sensing swim bladder linked to an otolith #expands (0.75) — George Michelsen Foy, Zero Decibels, 341
• Sensory efficiency has driven animal evolution and survival #exemplifies (0.75) — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 63
• The middle ear evolved as an impedance transformer to bridge air-water sound energy loss #expands (0.72) — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 733
• Hearing-specialist fish evolved in quiet waters and suffer heavy masking in noisy ones #corroborates (0.72) — Almo Farina, Soundscape Ecology, 1347
• Species shift calls to ultrasonic frequencies to escape constant noise masking #exemplifies (0.70) — Almo Farina, Soundscape Ecology, 1288