The Semakau shore has a lot of common sea stars...a lot. One has to be careful to avoid the sea stars.
Common sea stars have a habit of digging themselves into the sand. From observations over quite a few shore trips, some specimens start to dig in when a light shines on them. Others however do not and continue to stay at the surface above the sand even in bright sunlight. It could be that the stars become conditioned gradually to light and they tend to shy away from 'sudden' exposure to light when already conditioned to a dark environment.
This star did not dig in completely in the time that i've seen other specimens completely cover themselves. Perhaps that it had become somewhat conditioned to the light.
How do sea stars 'see' the light? Do sea stars have eyes?
Find out the answer here :
Find out much more about the common sea star here :
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