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Scientists Discover Mysterious Unknown Lifeforms from 1.6 Billion Years Ago

A team of scientists has made a groundbreaking discovery, unearthing the remains of an ancient, enigmatic realm populated by organisms believed to have thrived 1.6 billion years ago. This significant finding revolves around the detection of what scientists refer to as “proto sterol biota” in ancient rocks found in Australia.



The existence of these microscopic organisms is said to bridge a crucial gap in our understanding of the early evolution of eukaryotes, a family of life forms characterized by nucleated cells. It is believed that these organisms flourished in aquatic environments across the Earth long before the emergence of plants and animals. However, until this remarkable discovery, they have remained elusive in the fossil record.

In the quest to unravel the connections between humans and eukaryotes during what scientists term Earth’s “middle age,” a period estimated to have begun approximately 1.7 billion years ago, researchers have diligently pursued the roots of our relationship. Lasting for a billion years, this middle age witnessed the gradual evolution of simple organisms into more complex life forms. The revelation of this ancient lost world might finally provide us with vital insights into this transformative era.



According to the researchers, the discovered eukaryotes represent an early stage in the evolution of eukaryotes, lacking a complete sterol biosynthetic pathway. This places them as witnesses to an ancient lost world—a world inhabited by ancient stem-group eukaryotes that may have been more abundant during Earth’s middle age.

Benjamin Nettersheim, the co-lead researcher, expressed the team’s excitement, describing the realization that 1.64-billion-year-old rocks contained fossil proto-steroids as a genuine eureka moment. It is plausible that the proto-sterol biota of that era was either direct or indirect ancestors of the eukaryotes found in the present. However, the researchers suggest that they were more likely distant relatives, rather than direct predecessors.

Unfortunately, due to the lack of physical remains, it is challenging to determine the appearance or movement patterns of these ancient organisms. The researchers can only study the chemical byproducts left behind. The research, published in the journal Nature, aims to delve deeper into understanding this ancient lost world by conducting more extensive investigations of these organisms. By doing so, they hope to unlock further secrets about the process of evolution.

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