Researchers discovered that afferent nerves from transplanted otic placodes form functional connections with the brainstem, allowing them to reach their target cells. The study found that these neurons rely on diffusible molecules and other guidance mechanisms to navigate the hindbrain.
Researchers demonstrate that hairs, feathers and scales share a common evolutionary origin, developing from placodes with similar molecular signatures. The study provides new insights into the evolution of skin appendages and their diversity.
Researchers studying Nematostella, a simple sea anemone, discovered that cells begin thickening and then thin out as tentacles elongate. This process drives the formation of basic epithelial appendages, revealing fundamental principles in animal body construction.