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Eco-photos of the week: May 22-28

Sumatran tiger Malea bathes one of two of her new cubs inside their enclosure at the zoo in Frankfurt, Germany on May 25.

Photo: Boris Roessler

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Sumatran mothering

Sumatran tiger Malea bathes one of two of her new cubs inside their enclosure at the zoo in Frankfurt, Germany, on May 25.

Sumatran tigers are critically endangered due to poaching and loss of habitat, and there are only a few hundred individuals left in the wild.