Starfish development

Seven successive stages of earlier starfish development, precursors of the juvenile shown above. Increasing in age from left to right and top to bottom. The first three specimens are embryos, and the last three are larvae, with the fourth being transitional between the two. Many tube feet are visible in the oldest specimen (lower right).

Composite image. Reflected light, stereomicroscope. The image is quite incredible looking when viewed in full, IMO.

by Sharon Minsuk

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