Researchers at the University of Warwick have uncovered the mechanism that allows plants to pass on their 'memories' to offspring, which results in growth and developmental defects.
The water-to-land transition is one of the most important major transitions in vertebrate evolution. However, there is still uncertainty about when the water-land transition took place and how terrestrial early tetrapods really were. A new paper in Nature addresses these questions and shows although these early tetrapods were still tied to water and had aquatic features, they also had adaptations that indicate some ability to move on land.
Twice as much freshwater is stored offshore of Hawai'i Island than previously thought, revealed a University of Hawai'i study with important implications for volcanic islands around the world. An extensive reservoir of freshwater within the submarine southern flank of the Hualālai aquifer was mapped by researchers with Hawai'i EPSCoR 'Ike Wai project, showing a way in which substantial volumes of freshwater are transported from onshore to offshore submarine aquifers along the coast of Hawai'i Island.
A new bird fossil helps scientists better understand convergent evolution of complex anatomy and provides new insights into the evolution of face and beak shape in a forerunner of modern birds.
The only dinosaur bones ever found on the island of Ireland have been formally confirmed for the first time by a team of experts from the University of Portsmouth and Queen's University Belfast, led by Dr Mike Simms, a curator and palaeontologist at National Museums NI.
By cutting into dinosaur bones and analyzing the growth lines, a team of researchers discovered that T. rex and its closest relatives got big thanks to a huge growth spurt in adolescence, while its more distant cousins kept on growing a little bit every year throughout their lives.
Palaeontologists at Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) and the University of Calgary in Canada have provided new proof of parallel evolution: conodonts, early vertebrates from the Permian period, adapted to new habitats in almost identical ways despite living in different geographical regions. The researchers were able to prove that this was the case using fossil teeth found in different geographical locations.
A new study adds another layer to the remarkable evolutionary transition of life from water to land on Earth. The international study of the prehistoric 'relic' tetrapods, including salamander and lobe-finned lungfish and coelacanths, adds another perspective to the evolution of other four-legged land animals, including related animals such as frogs and reptiles which live in both terrestrial and aqueous environments.
A team of palaeontologists described two amber pieces found in sites in Teruel (Spain) with remains from vertebrates corresponding to the Early Cretaceous. Both pieces have their origins in the same conservation process of resins, described for the first time by the researchers. One of these remains corresponds to the finding of the oldest mammalian hair in amber worldwide, and the remains found in the other piece correspond to dinosaur feathers.
Some, if not all, early sharks that lived 300 to 400 million years ago not only dropped their lower jaws downward but rotated them outwards when opening their mouths. This enabled them to make the best of their largest, sharpest and inward-facing teeth when catching prey, paleontologists at the Universities of Zurich and Chicago have now shown using CT scanning and 3D printing.