Each day, hundreds of microplastic particles could be sent to down towards the seabed in each cubic metre of seawater thanks to the poop of tiny animals called copepods.

There are billions of these teeny planktonic creatures living in our seas, from the surface all the way down to the seafloor. There are so many of them that even basic functions can significantly impact the marine environment.

When copepods eat tiny pieces of ocean plastic, they can transport them up the food chain (when they are eaten) or send them down to the seafloor (through excrement).

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