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Yes. There are several species of small marsupials called antechinuses or marsupial mice from Australia that breed only once and then die. These small carnivores eat mostly insects and invertebrates. During their first and only breeding season, males frantically search for females and mate with any they come across. After several weeks on intensive activity, the male is exhausted. His body is full of stress and sex hormones, and his body begins to deteriorate. His fur falls off in patches and his immune system shuts down. Shortly after his one breeding season ends the male dies. Animals that breed once and then die are referred to as semelparous, from the Latin "to beget once".

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Q: Are any mammals that breed only once in their life and then die?
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