Search results for aquatic ecology

Earth Sciences Apr 29, 2025

Aquatic sediment layers reveal 100 years of metal pollution in São Paulo, Brazil

The history of metal pollution in the city of São Paulo, the largest metropolis in Brazil and the Southern Hemisphere, can be read in the layers of sediment accumulated over the last century.

Evolution Apr 28, 2025

'Extremely rare event': Bone analysis suggests ancient echidnas lived in water

A small bone found 30 years ago at Dinosaur Cove in southeastern Australia could turn what we know about the evolution of echidnas and platypuses on its head.

Plants & Animals Apr 24, 2025

Slowing the spread: Researchers offer recommendations for preventing invasive carp

New research from South Dakota State University's Department of Natural Resource Management examines how different states are stopping the spread of invasive carp.

Ecology Apr 22, 2025

Common insecticide damages freshwater ecosystems, finds study

The pesticide thiacloprid turns out to be more harmful than previously thought. It can disrupt the lives of freshwater invertebrates and their communities, upsetting the balance and functioning of entire freshwater ecosystems. ...

Environment Apr 17, 2025

Greater regulation needed to protect freshwater environments from pharmaceutical drugs, says researcher

Increases in the production and use of pharmaceutical drugs–like antibiotics, antidepressants and pain relievers–are contributing to the contamination of Canada's freshwater resources. It's not just an environmental issue, ...

Evolution Apr 17, 2025

Early British lizard relative among the first known to climb trees

The life of a 166-million-year-old reptile has been turned upside down. While Marmoretta oxoniensis was believed to have swum in ancient lagoons, new research reveals it spent its time climbing trees instead.

Evolution Apr 16, 2025

Ancestors of today's crocodilians survived two mass extinction events: Study uncovers secret to their longevity

Most people think of crocodilians as living fossils—stubbornly unchanged, prehistoric relics that have ruled the world's swampiest corners for millions of years. But their evolutionary history tells a different story, according ...

Plants & Animals Apr 15, 2025

If we must bring back extinct species, let's focus on the giant herbivores

The American genetic engineering firm Colossal Biosciences recently announced to much fanfare it had "de-extincted" the dire wolf, a canine species that was wiped out around 10,000 years ago. However, the three animals it ...

Plants & Animals Apr 10, 2025

Who eats whom? New model for marine food webs calculates predator-prey relationships more precisely

Marine food webs are highly complex. Until now, researchers have been unable to understand exactly how they are affected by climate change, overfishing and other threats. Scientists at the Helmholtz-Zentrum Hereon in Geesthacht ...

Environment Apr 10, 2025

Penguin feathers reveal mercury contamination in remote Southern Ocean

In 1962, when environmentalist and author Rachel Carson penned "Silent Spring," alerting the world to the dangers of the pesticide DDT, it was the reproductive threat to birds—the bald eagle in particular—that spurred people ...

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