Summary:
- Lichens, which are a symbiotic relationship between fungi and algae, were one of the earliest life forms to colonize land on Earth.
- Lichens helped create soil and weathered rock, paving the way for the evolution of more complex plant and animal life on land.
- Lichens played a crucial role in the transition of life from the oceans to the terrestrial environment, making the planet more habitable for diverse lifeforms.