Two Little Gorillas by Jo Weaver

Little Toya finds another young gorilla hiding in the bushes and can't wait to show him off to her family. But when her daddy and cousins pay Umu too much attention, Toya starts to feel jealous and left out. Wanting to hide away with her feelings, Toya climbs the tallest tree in the forest. But high up and under heavy rain, Toya's too scared to get down again. As the branches shake, Toya is surprised to see who has come to her rescue.