Fish in a polluted Mexican river may mate with the wrong species, leading to hybrid offspring
The byproducts of modern society appear to be messing with the love life of two tiny fish species that have long coexisted in Mexican rivers.
Ecotoxicology is the scientific discipline that studies the fate and effects of chemical, physical, and biological stressors on organisms, populations, communities, and ecosystems in the environment. It integrates toxicology, ecology, environmental chemistry, and risk assessment to quantify exposure, dose–response relationships, and adverse outcome pathways under realistic environmental conditions. Ecotoxicology addresses contaminant transport, transformation, bioavailability, bioaccumulation, and biomagnification across trophic levels, and evaluates sublethal endpoints such as endocrine disruption, behavioral changes, and reproductive impairment. The field underpins environmental quality criteria, ecological risk assessment, and regulatory decision-making for pollutants including pesticides, metals, pharmaceuticals, and emerging contaminants.
The byproducts of modern society appear to be messing with the love life of two tiny fish species that have long coexisted in Mexican rivers.
Plants & Animals
Jul 1, 2026
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48
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Ecology
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11
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Ecology
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Environment
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9
When colleagues and I found microplastics in hedgehog droppings, we wanted to know where they were coming from. One answer was surprisingly close to home: pet food.
Plants & Animals
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12
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Environment
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Environment
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Monitoring the eggs of wild birds like the bearded vulture and the imperial eagle over a decade reveals the accumulation and persistence of environmental pollutants in ecosystems. At first glance, a wild bird's egg represents ...
Ecology
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5
Depression, anxiety and sleep disorders are among the conditions often treated with antidepressant drugs. Yet, up to 90% of these drugs pass through the body into wastewater. They're also difficult to remove during water ...
Environment
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Textile wastewater treatment practices inadvertently produce toxic byproducts—including chloroform and bromoform—at alarming levels that pose a clear occupational health hazard and lead to unknown environmental effects downstream, ...
Environment
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