The Respiratory System: Built for Oxygen Delivery Cheetah. image via Unsplash. The cheetah’s respiratory system has evolved to support its high-speed lifestyle, featuring enlarged nasal passages, ...

Imagine witnessing a streak of golden lightning racing across the sunburned savanna—heart pounding, paws barely touching the ...

Every time you open up a Google Doc with the setting “anyone with a link can view,” the contents of that document probably aren’t the only thing you scan. Your eyes likely also check for the ...

Endocrine system articles from across Nature Portfolio The endocrine system refers to the cells, glands and organs that secrete hormones directly into the blood in order to control physiological ...