Here's why:

* Ferns reproduce through spores, not seeds: Ferns belong to a group of plants called pteridophytes, which reproduce using spores. These spores are released from structures called sporangia located on the underside of the fern's leaves.

* Pollination is for seed-bearing plants: Pollination is the process of transferring pollen (containing male gametes) to the stigma of a flower (containing female gametes) in seed-bearing plants (angiosperms and gymnosperms). This process leads to fertilization and the development of seeds.

* Ferns lack flowers, seeds, and pollen: Ferns do not have flowers, seeds, or produce pollen. Therefore, they cannot undergo pollination.

Instead of pollination, ferns rely on wind or water to disperse their spores. These spores then germinate and grow into new fern plants.