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Ducks with corkscrew penises, fish changing sex 鈥� what do we really know about sex and reproduction on Earth? Less than we think, reveals a mind-boggling new book. Elle Hunt explores
Bacterial vaginosis, which is caused by bacteria overgrowing in the vagina, can be hard to treat, with women often experiencing recurring symptoms. Now it seems that asking their male sexual partners to use antibiotic pills and cream could be key to tackling the condition