Gut bacteria can mean life or death for birds

In her upcoming thesis at Lund University in Sweden, biologist Elin Videvall shows that the composition of gut bacteria in birds has a major impact on whether their offspring will survive their first three months.

Parasites inside your body could be protecting you from disease

It's fair to say parasites are generally bad for their hosts. Many cause disease and death so, like most species, we humans usually try to avoid infection at all costs. But it turns out that some parasites, although potentially ...

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