This is a picture of a fern, the underside of this fern is covered with dozens of little spores. Spores are reproductive tools, they can form new organisms without any sexual interaction with other plants. While flowers are grown through the transfer of male pollen to the female part of a flower, ferns do not require any transfer like that. Each and every one of the spores on a fern has the capability to grow a whole fern on it’s own, it just requires a large amount of moisture which is why ferns are typically found in dense forest. If there is a large enough layer of moisture on the spore, the sperm cells can swim towards the egg cells on the spore. When the sperm cell and egg cell come in contact, they can fuse their DNA to form a cell with the adult fern genes.