Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet initiative has ...

Scientists are rethinking defecation as a universal trait after studies showed several animals digest food without producing faeces. Species such as sponges, jellyfish, flatworms, tardigrades, and ...

(CNN) — Hottest day, hottest week, hottest month, and – increasingly likely – hottest year; 2023 has garnered unwanted records as the climate crisis escalates. Animals, like humans, are greatly ...