I noticed this spider-hunting wasp while I was watching birds the other morning. What attracted me to its presence was the speed with which it was running around this way and that. It seemed to be looking for something in the grass and leaf litter at my feet.
Then the wasp emerged from the leaves bearing a fleshy-looking spider. According to African Insect Life by S.H. Skaife, the wasp stings the spider in order to paralyse it rather than to kill it.
She then takes the spider to a previously prepared hole, lays her eggs on its abdomen, and covers the hole. In this way the wasp can ensure a fresh supply of food for her offspring as, after hatching, the larva feed on the spider until it is time to spin a cocoon.
Looking up from all this interesting activity, I saw an Olive Thrush collecting caterpillars for its young.
Life, for everything on this planet, is geared towards feeding the next generation.