PBS KIDS’ annual “Explore the Outdoors” initiative kicks off on April 10th with a week of new episodes from WILD KRATTS and NATURE CAT! It’s an Earth Month celebration as the STEM focused shows encourage families to head outside and explore what’s in their own backyard.   Kids can continue the discovery within their community as more than 30 local PBS member stations will be hosting Earth Month-related events such as lessons on local ecology to urban hiking and biking trails. For even more hands-on learning activities, families can explore the activities and materials available on PBS PressRoom.   New digital content includes WILD KRATTS’ “Aviva’s Eel-ectric Challenge,” a…