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Paleontology
Jurassic Period Biodiversity: How Extinction Built a New World
Jurassic period biodiversity is the variety of life that existed 201.3 to 145 million years ago, when dinosaurs dominated, the first birds appeared,...
Quaternary Ice Age: Why Earth Is Still in an Ice Age
The Quaternary Ice Age is the current geological interval of repeated glacial and interglacial cycles, beginning 2.58 million years ago.
Unconformity: Where Billions of Years Vanish from Stone
An unconformity is a surface in the rock record where a gap in geological time separates two layers of stone, spanning millions to...
Iterative Evolution: When Species Re-Evolve the Same Traits
Iterative evolution is the repeated emergence of similar traits from the same ancestral lineage at different points in geological time.
Fossilization Process: How Organisms Become Fossils
Fossilization is the set of physical and chemical processes preserving organisms in Earth's crust, typically within sedimentary rock.
Cambrian Explosion: When Animal Life Took Shape
The Cambrian Explosion is the rapid diversification of animal life that began approximately 538.8 million years ago, producing most major animal body plans...
Monotremes: Six Egg-Laying Mammals Lived Together 100 Million Years Ago
Opalised fossils from Lightning Ridge reveal six monotreme species – including an 'echidnapus' – lived alongside dinosaurs. Australia's Age of Monotremes.
Dunkleosteus Was Half the Size We Thought – and Prototaxites Is Stranger Still
New research on Prototaxites suggests it belongs to an entirely unknown lineage of life.
