BERLIN (AP) — Christel Krueger peered through thick glass and murky water at the Berlin Zoo, staring in awe at a mother hippopotamus and her child sleeping on a sandbar.

Krueger, 86, and her daughter were on a specialized zoo tour last month for people who live with dementia that was organized by Malteser Deutschland, part of the international Catholic aid organization Malteser Order of Malta.

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