the community site for and by developmental biologists

Displaying posts with the tag: nervous-system-evolution [Clear Filter]

Why more is better in comparative developmental biology…

Posted by on January 26th, 2018

Our recent paper in “Nature” [1] deconstructs molecular arguments that have been used to homologize bilaterian nerve cords. Our work illustrates well the strength of the comparative approach and the broad sampling across the animal tree of life that we use in my research group at the Sars Centre for Marine Molecular Biology.   Evo-Devo[…]

Evolution of the First Nervous Systems II

Posted by on November 29th, 2013

What is the earliest Phylum of metazoans to possess what we would recognize as a nervous system? Did earlier organisms have all the components of a nervous system in the absence of what we would recognize as neurons? What is a neuron? Did nervous systems evolve independently more than once? Where were all the molecular[…]