The lemurs' peaceful existence is shaken by the arrival of two colorful ruffed lemur brothers, Rufus and Owen. But how will the lemurs react to their new neighbors? The short but impressive life of the Atlas moth Apollo is followed: from egg to voracious caterpillar and finally a beautiful butterfly. But will he manage to reproduce before his time is up? The polar bears dig a den for winter shelter. The women are critical and start over again and again. There's love news for the asian small-clawed otters: Ronnie dreams of a family, but is his young partner Petronella ready for motherhood?