Tadpole species that lost their lungs through evolution never re-evolve them, even when environmental change would make it ...

Haley Mast is a freelance writer, fact-checker, and small organic farmer in the Columbia River Gorge. She enjoys gardening, reporting on environmental topics, and spending her time outside ...

Katherine Martinko is an expert in sustainable living. She holds a degree in English Literature and History from the University of Toronto. Haley Mast is a freelance writer, fact-checker, and small ...

VALPARAISO — Snow was falling and temperatures were dropping Thursday, but a little warmth entered the Guerra home that morning. The family received a Christmas tree from Bring Hope Home for the ...

A 3D-printed replica of the lungs has been touring Greater Houston to help UTHealth Houston researchers study the health risks posed by small airborne particles that collect in the respiratory system.

Familiar with the phrase "cough up a lung"? It's not actually possible, but one man stunned doctors when he coughed up a blood clot in the shape of one. Researchers published the shocking findings in ...