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Tools for singing loudly and amplifiers for hearing better: the tree cricket story

Crickets use sound to find mates. The louder their sound is the further it reaches. The textbooks say that they increase their acoustic space using just morphology and mechanics. Song producing wings and females ears resonate at the same frequency enhancing the size of their acoustic space. But some crickets didn’t read the textbook. In this talk, I will present some research on the Oecanthines, beautiful insects called tree crickets. Males tree crickets use a behavioural strategy to make themselves louder. They manufacture a baffle, a tool that makes them louder.

A Simple Twist of Fate: Genetic Analysis of Neural Crest Cell Fate Determination

Single cell approaches are causing biologists to re-evaluate classical ideas of cell types and how they arise during embryonic development. One population of particular interest is the neural crest, because it migrates throughout the body to give rise to a huge variety of derivatives such as peripheral neurons, pigment cells and bones of the skull. How do such migratory cells navigate through ever-changing environments yet reliably acquire these diverse fates? Our single cell transcriptomic studies in zebrafish suggest that they do so through a series of lineage bifurcations.


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