Research shows fish species are shrinking, likely due to global warming

A global analysis of thousands of animal and plant species reveals a trend of shrinking body sizes, primarily observed in fish. Species like the thorny skate are becoming smaller, while smaller-bodied species like mackerel are increasing in abundance, altering ecosystems. Scientists suggest that global heating and overconsumption, defining characteristics of the Anthropocene, may be driving these changes. The study, encompassing data on 4,292 species, highlights the replacement of large organisms by smaller ones, potentially maintaining biomass equilibrium within ecosystems. Understanding these complex dynamics is crucial for comprehending the consequences of shrinking body sizes on biodiversity and ecosystem functioning. (The Guardian)