Defecation is commonly treated as a universal feature of animal life, a visible outcome of digestion and metabolic turnover.

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

Fossilised faeces of a crocodile-like predator living 200 million years ago reveal the animal was infected with multiple parasite species. Evidence of ancient parasites is notoriously hard to find in ...