Emma Kast, University of Cambridge; Jeremy McCormack, Goethe University Frankfurt am Main, and Sora Kim, University of California, Merced
Megalodon, the world’s largest known shark species, swam the oceans long before humans existed. Its teeth are all that’s left, and they tell a story of an apex predator that vanished.
Collectively, the evidence studied by ichnologists helps to paint a picture of long-gone landscapes and the creatures and plants that populated those spaces.
There is something near-miraculous in the concept of tiny creatures, weighing just grams, making tracks and traces so long ago, that are now evident in rock.
Two newly discovered species of quokka-sized kangaroos, which lived 18 million years ago in the Queensland rainforest, show evolution in the act of giving kangaroos a taste for leaves.
The lack of large numbers of fossils makes it hard to study sexual dimorphism in dinosaurs. But a new statistical approach offers insight into this question and others across science.
The little dinosaur is curled up inside its shell the same way birds do before hatching, shedding new light on the link between the behaviour of dinosaurs and modern birds.