Related topics: protein

The evolutionary link between diet and stomach acidity

An analysis of data on stomach acidity and diet in birds and mammals suggests that high levels of stomach acidity developed not to help animals break down food, but to defend animals against food poisoning. The work raises ...

Video: What happens when you swallow gum?

It's a legendary piece of playground lore: If you swallow a piece of gum, it stays stuck in your stomach forever. So was your elementary-school buddy right?

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