Advertisements
1. Cyanobacteria
Age: 2.8 billion years
Number one on our list of oldest animals is Cyanobacteria. Usually referred to as “blue-green algae,” it is said to have been responsible for dramatically changing the composition of Earth’s life forms. As a byproduct of photosynthesis, cyanobacteria both produce and release oxygen.
Hope you found this list interesting. Want us to cover similar topics, tell us by dropping a line in the comments. And while you are at, might as well check out the top 10 ugliest animals on our planet.