Scientists have discovered the largest genome in a small fern that grows in the island nation of New Caledonia. Experts say it is particularly exciting because it has been found inside a plant. It is estimated that the genome found in the small fern is 50 times bigger than what is found in human beings. Scientists who found this out say that the size of the genome influences the growth of the plant. It also affects how resilient it is to climate change and other factors.