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, ...
Walter Willett is a professor of epidemiology and nutrition at Harvard T.H. Chan School of Public Health. Q: I’ve been getting mixed messages about animal protein and plant protein. Is it true that ...
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