HARVARD — Area children are invited to explore the world of endangered wildlife during “Helping Endangered Species with Joys of Nature” featuring live animals and hands-on learning — with two sessions ...

Embracing nature and learning about how it works is just part of the mission for this nonprofit in the Valley.

At the Smithsonian’s National Zoo’s Little Critters: Nature Play area, young children and their caregivers can have fun with free, nature-based play activities Mike Bock At 10 a.m. on a sunny Tuesday, ...