Do Fish Sleep?

I’m not sure what prompted Kam to ask this question.  Perhaps it’s because we saw fish in the pond at the park, (see our post do fish have ears?).  Nevertheless it’s a question asked – several times now.

Fish and Brain Patterns

imageFish do rest, but whether they sleep depends upon how you define sleep.

When people sleep there are specific changes which occur to brain wave patterns and ar processed in the brain’s neocortex area.  Fishes don’t have advanced neocortical development, they don’t display the associated brain-wave sleep patterns. 

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Do Worms have Eyes?

Worms glorious worms
Worms glorious worms

Kam loves worms.  He is fascinated by them and is kind to them.

When we see a worm on top of the soil Kam stops to find a suitable leaf to hide it from “thieving, naughty” birds.  It doesn’t matter where we are Kam’s on worm lookout.

Kam’s rescues worms from pavements.  We get a leaf or a twig and move them to grass or soil.  If they look dried then we have to give them a touch of water.
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