Sisters improve chances of reproduction in Asian elephants

Researchers at the University of Turku found that the presence of a maternal sister was positively and significantly associated with annual female reproduction in a population of working elephants in Myanmar. In addition, ...

Who's your daddy? Infidelity and paternity in reed warblers

Many species pair for life, or so the story goes. In reality, there is quite a bit of cheating going on. Both male and female partners may have "affairs" outside the pair bond. In such cases, how is a male to know if the ...

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