Photographs of alkaline magmatic intrusions in Greenland. The region was volcanically and tectonically active around 1.2 billion years ago. Although no longer active, it is of major interest to geologists because the subsequent uplift and glacial erosion have cut deep into the rift and exposed the magma chambers that once lay well below the surface. Greenland’s magmas were sourced from a mantle that was enriched and contaminated by ancient crustal materials. Credit: University of St Andrews

Ancient volcanoes reveal Earth’s recycled crust

The mineral olivine contains melt inclusions (black dots), just a few micrometers in size. The geochemists isolated these inclusions and investigated the isotopic composition with mass spectrometers. Credit: Münster University - Felix Genske

Geochemists measure new composition of Earth’s mantle

An artist's interpretation of the asteroid impact that wiped out all non-avian dinosaurs. Credit: NASA/Don Davis.

Rocks at asteroid impact site record first day of dinosaur extinction

Cryodrakon boreas. Credit David Maas

New reptile species was one of largest ever flying animals

Jurassic crocodile. Artist's impression (credit: Julia Beier)

Jurassic crocodile identified 250 years after fossil find

Origin of eukaryotes

Scientists identify rare evolutionary intermediates to understand the origin of eukaryotes

Giant extinct kangaroo

Giant Kangaroo Had Crushing Bites

Prof. Michael Coates holds a 3-D printed model of the Tristychius skull and jaws. Photo courtesy of Matt Wood

3-D reconstructions show how ancient sharks found an alternative way to...

Reconstruction of Mollisonia plenovenatrix, by Joanna Liang ©Royal Ontario Museum

Half-a-billion-year-old tiny predator unveils the rise of scorpions and spiders

The volcano Chimborazo, Ecuador, that Alexander von Humboldt surveyed in 1802. Photo: Spyros Theodoridis/CMEC

Why is Earth so biologically diverse? Mountains hold the answer

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