秘密花园第四集 P11 - BBC.Secret.Garden.Series.1.4of5.The.Wye.Valley.1080p.x265.AAC.UMMU.NET_11

The parents' gamble of breeding early has paid off. The owlets have had their difficulties, but both look set to survive. As summer comes to an end, the family harvest the honey from their beehive. But things are not so sweet for the garden's other bees. After laying hundreds of eggs, the bumblebee queen is close to collapse. She can no longer produce the pheromones that keep her workers in check. So, they start laying eggs of their own. And her larvae grow larger, as they will become the next generation of queens. It's over. The old queen is dead. With cold weather on its way, her loyal workers will die too. But soon, the new queens will head out on their own. If just one of them survives, the succession will be secured. A new generation of bees will pollinate the flowers in this garden and beyond. Life in the garden is slowing down. As the days shorten and the temperature falls, the trees absorb valuable nutrients from their leaves. Only then do they drop them. A single tree can shed hundreds of thousands of leaves. Laura works hard to keep the patio and the paths clear. But the vast majority of leaves lie with the bees.