Silhouettes show Mesohippus primigenium, an early ancestor of the modern horse that lived 40 million years ago and was previously believed to have three toes, and the modern horse

Researchers pose revolutionary theory on horse evolution

Archaeopteryx

The eleventh Archaeopteryx “Geologically oldest fossil”

This is the left hemi-maxilla with teeth.

Scientists discover oldest known modern human fossil outside of Africa

Ocean.

Primordial oceans had oxygen 250 million years before the atmosphere

Hummelstown Fossils. A) Typical specimen reconstruction showing body mass (white) poking out of the 'spindle'-shaped cone (patterned). Note the presence of 'spikes' on the sides of the exposed body. B) Typical fossil specimen with body mass (with at least one spike) and 'spindle'-shaped cone. C) Surface of rock slab showing numerous Hummelstown fossils.

Rare 450 million year-old ‘cone-shaped’ fossil offers enigmatic glimpse into ancient...

Diamonds with garnet inclusions can form at depths down to 550 kilometres below the surface. Credit

Oxidized iron deep within Earth’s interior

Earth experienced multiple large impacts; the high-pressure and -temperature conditions caused pockets of core and mantle partitioning that persist as chemically distinct today.

Earth’s core and mantle separated in a disorderly fashion

The fossil bone tissue reveals new information about how the Australian “hypsilophodontid” dinosaurs lived

Shedding light on Australia’s polar dinosaurs

Ruapehu Volcano

Tidal cycles could help predict volcanic eruptions

Stromboli Volcano

Tiny crystals could help predict volcanic eruptions

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