FoxP2 in Song-Learning Birds and Vocal-Learning Mammals

Article Abstract:

The FoxP2 gene is the first that has been identified as being specifically involved in language and speech development in humans. Although human language acquisition and song-learning in birds share neurological and behavioral similarities, research shows that FoxP2 does not play a role in vocal learning evolution in nonhuman animals.

Language acquisition, Songbirds

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Evolution of New Hormone Function: Loss and Gain of a Receptor

Article Abstract:

Three glucagon-like sequences have been identified in zebrafish, pufferfish, frogs, and chickens that are similar to proglucagon-derived peptide receptors. Two have been determined to have an origin prior to the divergence of mammals and fish; further data on receptor divergence and downstream effects are presented.

Physiological aspects, Frogs, Chickens, Zebra fish, Zebra fishes, Glucagon, Puffers (Fishes)

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