Star fish have no brain.. and are not really fish!

  • Not a fish. They do not have gills, scales, or fins like fish do and they move quite differently from fish.
  • They live in deep shallow cold and warm waters.
  • Sea stars have tiny tube feet to help them move along (see more on that below)
  • Sun star has up to 40 arms!
  • They grow their arms back, but it takes about a year
  • They have eyes!!! Sea stars have an eye spot at the end of each arm that can sense light and dark.
  •  Pisaster brevispinus—at 65 cm (26 inches) one of the world’s largest sea stars

Sea star anatomy (left), tropical sea stars (right)

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