Learn more about a time period marked ... organisms ever to populate Earth. These familiar marine arthropods first arose about 545 million years ago in the early Cambrian and thrived throughout ...

Sprigg’s discovery proved important as a first signal that the period now called Ediacaran, not the Cambrian just following ... call a “snowball Earth.” During that time oxygen levels ...

The moon, during this ... encompassed the Cambrian explosion, a period when life diversified dramatically and radiated into new niches. The second "step" in the staircase of Earth's spin occurred ...

This daily feast-and-famine cycle in oxygen availability created an intense physiological challenge for early animals, forcing them to develop adaptations to handle fluctuations in nutrients. For ...

Internal, genetic factors were also crucial. Recent research suggests that the period prior to the Cambrian explosion saw the gradual evolution of a "genetic tool kit" of genes that govern ...

visitors can follow fossil evidence tracing the evolution of life during the Cambrian period — the first geological period of the Paleozoic era — which lasted from 541 million to 485 million ...

The evolution of eyes could certainly have triggered an arms race during the Cambrian Period,' says Dr Ma ... present and future of life on Earth.

During Earth’s more than four-billion ... It was the time of the Cambrian Explosion, an eruption of life when Earth’s very first animals began appearing in the fossil record — the ancestors ...

The Precambrian encompasses 86 percent of the history of Earth ... Cambrian period. Hadean Era (4,550-3,850 mya) The Precambrian's oldest era, the Hadean, predates most of the geologic record ...

The trilobite, an extinct marine arthropod vaguely resembling a horseshoe crab, inhabited the primordial seas that covered New England during the Cambrian period 500 million years ... multi-million ...