A cactus bee (Diadasia sp.) pollinates a barrel cactus in Tucson, Arizona.

亚利桑那的图森，一只仙人掌蜜蜂正在一株桶形仙人掌的花朵上传粉。

Photograph by Mark W. Moffett – With a vigorous quiver, an Arizona sweat bee “buzz pollinates” a deadly nightshade flower.

马克.w.莫菲特摄--随着一阵剧烈的震颤，一只美国亚利桑那州的隧蜂正在嗡嗡地给一朵颠茄花授粉。

Photograph by Mark W. Moffett - With a vigorous quiver, an Arizona sweat bee "buzz pollinates" a deadly nightshade flower.

马克。w。莫菲特摄——随着一阵剧烈的震颤，一只美国亚利桑那州的隧蜂正在嗡嗡地给一朵颠茄花授粉。

It pollinates 90 commercialcrops worldwide, including most fruit and vegetables – from apples tocarrots – alfalfa for cattle feed, nuts, oil-seed rape and cotton.

蜜蜂为全球90种商业农作物授粉，包括多数水果和蔬菜，从苹果到胡萝卜、 喂牛的苜蓿、坚果、油菜和棉花。