The Cambrian explosion (also known as Cambrian radiation[1] or Cambrian diversification) is an interval of time beginning approximately 538.8 million years ago in the Cambrian period of the …

Cambrian explosion, the unparalleled emergence of organisms between 541 million and approximately 530 million years ago at the beginning of the Cambrian Period. The event was …

Around 530 million years ago, a wide variety of animals burst onto the evolutionary scene in an event known as the Cambrian explosion. In perhaps as few as 10 million years, marine …

Jul 2, 2024 · New research provides the clearest evidence to date that a rapid burst of evolution 540 million years ago could have been caused by a small increase in oxygen in Earth’s …

Jul 31, 2025 · But the “explosion”—that rapid burst of evolutionary innovation—occurred mostly within the first 20 to 25 million years of the Cambrian, making it extraordinarily fast by …

Learn more about a time period marked by an intense burst of evolution. The Cambrian period, part of the Paleozoic era, produced the most intense burst of evolution ever known. The …

Jul 26, 2025 · The Cambrian Explosion was a rapid diversification of life forms, marked by the appearance of most major animal phyla in the fossil record over approximately 20 to 25 million …

Mar 12, 2020 · In this video, Smithsonian Paleontologist Karma Nanglu discusses the explosion of life 500 million years ago.

May 17, 2025 · The Cambrian Explosion, occurring around 541 million years ago, signifies a rapid diversification of life on Earth, with most major animal phyla emerging in the fossil record over …

It is believed that most of the animal phyla in existence today had their origins during this time, often referred to as the Cambrian explosion. Echinoderms, mollusks, worms, arthropods, and …