Q: Have any modern animals adapted to human activity through natural selection? Mike Anglin | Dallas, Texas Human-caused factors have led to anatomical changes in both vertebrates and invertebrates.

Not that Coloradans needed the confirmation, but multiple organizations have ranked the state's outdoors activities among the nation's best in 2025.

The Trump administration’s proposed budget seeks to shut down the laboratory atop a peak in Hawaii where scientists have gathered the most conclusive evidence of human-caused climate change ...