A combined approach of teaching head development using embryology and comparative anatomy

Danowitz, Melinda; Zheng, Hong; Guigova, Adriana; Solounias, Nikos

doi:10.5348/a04-2016-11-ra-3

DOI: 10.5348/a04-2016-11-ra-3

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A combined approach of teaching head development using embryology and comparative anatomy

Melinda Danowitz¹,

Hong Zheng²,

Adriana Guigova³

et al.

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The domestication of the larynx: The neural crest connection

Lesch,

Fitch

2024

J Exp Zool Pt B

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Wolves howl and dogs bark, both are able to produce variants of either vocalization, but we see a distinct difference in usage between wild and domesticate. Other domesticates also show distinct changes to their vocal output: domestic cats retain meows, a distinctly subadult trait in wildcats. Such differences in acoustic output are well‐known, but the causal mechanisms remain little‐studied. Potential links between domestication and vocal output are intriguing for multiple reasons, and offer a unique opportunity to explore a prominent hypothesis in domestication research: the neural crest/domestication syndrome hypothesis. This hypothesis suggests that in the early stages of domestication, selection for tame individuals decreased neural crest cell (NCCs) proliferation and migration, which led to a downregulation of the sympathetic arousal system, and hence reduced fear and reactive aggression. NCCs are a transitory stem cell population crucial during embryonic development that tie to diverse tissue types and organ systems. One of these neural‐crest derived systems is the larynx, the main vocal source in mammals. We argue that this connection between NCCs and the larynx provides a powerful test of the predictions of the neural crest/domestication syndrome hypothesis, discriminating its predictions from those of other current hypotheses concerning domestication.

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The domestication of the larynx: The neural crest connection

Lesch,

Fitch

2024

J Exp Zool Pt B

View full text Add to dashboard Cite

show abstract

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A combined approach of teaching head development using embryology and comparative anatomy

Cited by 1 publication

References 0 publications

The domestication of the larynx: The neural crest connection

The domestication of the larynx: The neural crest connection

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