brittle star
dr. dolittle | April 30, 2016 Image of brittle star by Jerry Kirkhart from Los Osos, Calif. [CC BY 2.0 (http://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons
A new study published in Frontiers in Zoology examined the developmental process involved in regulating limb regeneration in brittle stars (Amphiura filiformis) following amputation of an arm. Limb regeneration is a multi-stage process involving initial healing and repair of the wounded site, initial growth of the limb followed by development of more complex layers of cells until ultimately the limb has been fully regenerated. Understanding this…