They both realized that the hypothesis could be expanded and applied to Earth and humanity due to the fact that humans have been in their current form for the past 300,000 years and have had sophisticated technology for only the last few centuries.

Apr 18, 2018 · How do we know earlier industrial civilizations on Earth didn't rise and fall long before humans appeared? That's the question posed in a new scientific thought experiment.

Apr 13, 2018 · Homo sapiens didn’t make their appearance on the planet until just 300,000 years or so ago. That means the question shifts to other species, which is why Gavin called the idea the Silurian...

Apr 30, 2018 · A new paper entitled “The Silurian Hypothesis" posits that an ancient technological civilization could have existed on Earth millions of years before humans.

Jan 16, 2025 · In Doctor Who, an alien species called the Silurians exists – technologically-advanced humanoid reptiles who lived long before humans, going into hiding and being basically undiscovered again...

Aug 1, 2019 · Right now, the planet is in the Anthropocene period, which is characterized by the widespread dominance of human beings. It's also characterized by an unprecedented spike in airborne carbons.

Apr 23, 2018 · How could we really know if industrial civilizations existed on Earth long before human beings appeared? That is the question posed in a scientific thought experiment by climate scientist Gavin...

Recognizable humans emerged at most 2 million years ago, a vanishingly small period on the geological scale. The earliest undisputed evidence of life on Earth dates at least from 3.5 billion years ago, [7][8][9] during the Eoarchean Era, after a geological crust started to solidify following the earlier molten Hadean eon.

Thanks to paleontologists and fossil records, scientists have been able to reveal more about what walked the Earth long before we did — many of the creatures mentioned below in the article lived around 500 million years ago.

Apr 18, 2018 · Reptilian menaces called Silurians evolved on Earth before humankind — at least in the "Doctor Who" rendition of the universe. But science fiction aside, how would we know if some advanced...