March of the Chloroplasts and a playful waterflea

This video shows chloroplast in the aquatic plant Elodea (also known as waterweed). They move around in the flow of the cytoplasm, which is called cytoplasmic streaming. I guess you could compare it to wood floating along with the currents of a river! Pretty!!

I also very much enjoyed this video of a waterflea playing with the unicellular algae Volvox.


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