Children play animal cards in Futian Mangrove Ecological Park in Futian District on Saturday. The park hosted a wide range of activities Saturday and yesterday to mark the upcoming International Children’s Day and the 2nd Otter Festival. The park first spotted otter activity Oct. 25, 2020, when a suspected otter was captured by an infrared camera. After expert research and analysis, image analysis and field trace collection, it was identified as a Eurasian otter.                                Liu Xudong