Sustainable strategies to treat urban runoff

We know the lakes and rivers in and around urban environments are contaminated by plastic debris, detergents, pesticides, heavy metals and other contaminants, but new research is showing that urban runoff toxicity is ill-defined ...

Zoo air contains enough DNA to identify the animals inside

The air in a zoo is full of smells, from the fish used for feed to the manure from the grazing herbivores, but now we know it is also full of DNA from the animals living there. In the journal Current Biology on January 6th, ...

Fish are being increasingly exposed to endocrine disrupters

Microplastics, owing to their chemical properties, can carry micropollutants into a fish's digestive system where they are subsequently released through the action of its gastric and intestinal fluids. EPFL scientists, working ...

Crystal clear: Lepidopterans have many ways of being transparent

Butterflies and moths have beautiful wings: The bright flare of an orange monarch, the vivid stripes of a swallowtail, the luminous green of a Luna moth. But some butterflies flutter on even more dramatic wings: Parts of ...

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