Day or night... hard at work

I took a walk tonight with my camera to see if I could shoot some interesting pictures of some of the cacti in my garden at night. This particular plant was interesting because it had ants hard at work gathering something.. .. I couldn't figure out what from the bases of the spines. There are small round yellowish looking spheres. The plant has already flowered and the flowers have dropped off, so it couldn't have been pollen. The spheres almost look like eggs - but ants don't lay their eggs in cacti. Maybe something else does. It was fascinating to watch what ever it was. 

I'm always so surprised when someone tells me they are bored. Open your eyes - there are interesting things going on all around us!