Insects, the most diverse group of animals on Earth, trace their origins to the late Silurian or early Devonian, around 400 million years ago. Early lineages acquired powered flight and, later, ...
The study of extinction dynamics in the fossil record integrates patterns of biodiversity loss with environmental and biotic drivers across geological time. Fluctuations in global diversity often ...
Scientists are increasingly worried we may be witnessing the start of the "sixth mass extinction"—the first to be caused by human activities. Five earlier mass extinctions, caused by dramatic but ...
The extinction that ended the Age of Dinosaurs is best known for clearing the way for the Age of Mammals on land. Scientists have long suspected that the same catastrophe also transformed life in the ...
Scientists are increasingly worried we may be witnessing the start of the “sixth mass extinction” – the first to be caused by human activities. Five earlier mass extinctions, caused by dramatic but ...