There are so few wild ocelots in the US that the cats are becoming inbred, with a bad prognosis for their ultimate survival. But researchers are perfecting ways to get new genes into the population.
Research shows that when parents engage in simple science projects with their kids at home, it boosts their learning in school.
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The animals can see you as a threat, so make them feel at home.
A meerkat at the National Zoo and Aquarium in Canberra. The Zoo has recently announced an expansion that will double its size.
AAP Image/Stefan Postles