Across the world, water scarcity is emerging as one of the most pressing challenges of the 21st century. Climate change is ...

For the first time, researchers have mapped the population structure of silky sharks (Carcharhinus falciformis) in the Eastern Pacific Ocean, offering new insights that could guide future conservation ...

Zoos are facing ageing populations that threaten the conservation of endangered species, and targeted culls may be needed to ...

A new study, published in the Journal Science, shows the number of butterflies in the United States has drastically declined, 22% over 20 years. "The major factors that are considered likely here are ...

Governments, international bodies and researchers rely on global population data for resource allocation and infrastructure planning to disease epidemiology and disaster risk management. In a study ...

The unsheltered homeless population in Venice declined by 22% in 2024, with 165 fewer people living on the streets compared to the previous year, according to a comprehensive study released by RAND ...

Brian Cassie has been counting butterflies in Massachusetts for decades. He helped create Mass Audubon’s butterfly atlas in 1986 and founded the Massachusetts Butterfly Club shortly afterwards. Now, ...