From frogs and sponges to jellyfish and tardigrades, scientists reveal how some animals digest food without defecating, ...

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 ...

Zoological research reveals fascinating animals that do not produce faeces. These creatures, including tree hole frogs, ...

As we enter the dog days of summer, people will try all sorts of things to escape the heat, from sweating in front of a fan to drinking a piping hot cup of tea (which actually does help). But body ...