How many rats are in New York City? Scientists find new clues in the East River.

"Hidden World of New York City: Scientists Uncover Surprising Secrets of Urban Ecosystems" In a groundbreaking study, researchers have harnessed the power of environmental DNA (eDNA) to create a remarkably detailed portrait of life in New York City's waterways. By analyzing eDNA in water samples, scientists have uncovered a vast array of species, from majestic fish and birds to tiny microorganisms, that call the city home. This innovative technique has the potential to revolutionize the way we monitor ecosystems, providing a powerful tool for conservationists and scientists to track changes in urban environments. As the world grapples with the challenges of climate change and biodiversity loss, this study offers a beacon of hope for a more nuanced understanding of the intricate web of life that surrounds us.

An analysis of eDNA in water samples reveal a surprisingly detailed snapshot of life across New York City. The technique could help scientists monitor ecosystems everywhere.