Pollination
The movement of pollen from an anther to a stigma, the first step in making seed.
Pollination happens when pollen reaches the stigma of a flower of the same species. Most flowering plants rely on animals to carry it: bees, flies, butterflies, moths, beetles, birds and bats. Others use wind, as grasses and many trees do, and a few use water. The colours, shapes and scents people enjoy in flowers exist because of pollination. They are signals to the carriers. Without pollination most plants set no fruit and no seed, which is why it matters so much for food crops.