Contact: Dr. Gáspár Jékely
Caption: At first, the bristle worm larvae possess only individual photoreceptor cells on both sides of the body, called eyespots. Later, the precursors of the visual organs of adult animals form on the top of the head of the larvae.
Credit: Max Planck Institute for Developmental Biology
Usage Restrictions: None
Related news release: Eye evolution: A snapshot in time