Source: EuroNews, 1/2/26
'A new study, published in the journal Global Change Biology, tracked a population of Fiddler crabs – which grow no bigger than the width of a Post-It note – in a highly polluted mangrove forest on the north coast of Colombia. Here, years of urban and agricultural expansion have degraded the mangrove systems, resulting in some of the highest levels of plastic contamination reported anywhere in the world. Despite this, researchers found that the arthropods were “thriving” and are able to ingest and break down large quantities of small plastic particles in the sediment. With the reputation of being an “ecosystem engineer”, these crabs can break down plastics within days, acting much faster than sunlight and waves...Researchers warn that the fiddler crab’s fascinating ability may come at a cost – potentially releasing harmful nanoplastics into their tissues and subsequently into the food chain.'