Tag Archives: Evolutionary Biology

1966: The Evolutionary Theory of Endosymbiosis – Tracing the Origins of Cellular Complexity

Endosymbiosis, first proposed by Konstantin Mereschkowski and later advanced by Lynn Margulis, is a fundamental evolutionary theory explaining the origin of complex eukaryotic cells from symbiotic relationships with prokaryotic organisms

1943: Sky Islands – Unique Ecosystems of Isolated Mountain Peaks

Sky islands are isolated mountain ecosystems that showcase biodiversity changes due to geographic isolation, similar to oceanic islands

c. 550 Million BCE: Unraveling the Mysteries of the Cambrian Explosion

Explores the Cambrian Explosion, a pivotal period about 550 million years ago marked by a dramatic increase in life's diversity, including the emergence of hard-shelled eukaryotic organisms, and discusses the mass extinctions that followed

c. 1 Billion BCE: The Rise of Complex Multicellular Life

Explores the evolution of complex multicellular organisms, detailing their emergence about a billion years ago and highlighting key fossil evidence, such as the 650-million-year-old Doushantuo Formation. It also discusses the challenges faced by evolutionary biologists [...]

c. 2 Billion BCE: The Emergence of Eukaryotes – A Major Evolutionary Milestone

Discusses the evolutionary leap from prokaryotic to eukaryotic cells around 2 billion years ago, detailing the complex structures of eukaryotes and their significance in the diversification of life, including multicellular organisms like plants, fungi, and [...]