Results 81 - 84 of 84.

Earth Sciences - Paleontology - 25.07.2018
Creating ’synthetic’ fossils in the lab sheds light on fossilisation processes
A newly published experimental protocol, involving University of Bristol scientists, could change the way fossilisation is studied. In addition to directly studying fossils themselves, experimental treatments of fresh organismal remains can be utilised to study fossilisation. One commonly employed experimental approach is known as 'artificial maturation', where high heat and pressure accelerate the chemical degradation reactions that normally occur over millions of years when a fossil is buried deep underground and exposed to geothermal heat and pressure from overlying sediment.

Paleontology - Life Sciences - 23.07.2018
New sources of melanin pigment shake up ideas about fossil animals’ colour
A team of palaeontologists, led by University College Cork (UCC) and including the University of Bristol, have discovered new sources of the pigment melanin, calling for a rethink of how scientists reconstruct the colour of fossil birds, reptiles and dinosaurs. Many recent studies of fossil colour have assumed that fossilized granules of melanin - melanosomes - come from the skin.

Life Sciences - Paleontology - 02.05.2018
First bird beak, right under their noses
A rare fossil from an early bird gives a unique insight into how modern birds evolved from dinosaurs Last updated on Wednesday 16 May 2018 An international team of researchers has pieced together the three-dimensional skull of an iconic, toothed bird that represents a pivotal moment in the transition from dinosaurs to modern-day birds.

Life Sciences - Paleontology - 05.11.2017
Ten leading universities conduct over one third of all UK animal research
Mass extinctions were followed by periods of low diversity in which certain new species dominated wide regions of the supercontinent Pangaea, reports a new study. The findings indicate that mass extinctions may have predictable consequences and provide insights into how biological communities may be expected to change in the future as a result of current high extinction rates.