Marine biologists have been able to visualize for the first time how tropical sponges and their symbiotic bacteria work together to consume and recycle organic food. The research led by Meggie ...

The digestive system is the series of tubelike organs that convert our meals into body fuel. There are about 30 feet (9 ...

Defecation is commonly treated as a universal feature of animal life, a visible outcome of digestion and metabolic turnover. In biological terms, however, waste handling takes multiple forms, shaped ...