A team of Australian scientists has completed research that could help solve a 200-year-old mystery surrounding an iconic Australian bird.
'Megalodon' -- a giant predatory shark that has inspired numerous documentaries, books and blockbuster movies -- likely went extinct at least one million years earlier than previously thought, according to new research published Feb. 13 in PeerJ. This is a substantial adjustment as it means that O. megalodon likely went extinct long before a suite of strange seals, walruses, sea cows, porpoises, dolphins and whales all disappeared sometime about 1-2.5 million years ago.
An exceptional sauropod dinosaur specimen from the middle Cretaceous of Tanzania represents a unique species and provides new insights into sauropod evolution, according to a study published Feb. 13, 2019 in the open-access journal PLOS ONE by Eric Gorscak of Midwestern University, Illinois, and Patrick O'Connor of Ohio University, USA.
A new dinosaur that wears its 'heart' on its tail provides new clues to how ecosystems evolved on the African continent during the Cretaceous period according to researchers at Ohio University.
A new paper in the Journal of Systematic Palaeontology, coauthored by a KU researcher, describes fossil spiders found in an area of Korean shale called the Lower Cretaceous Jinju Formation.
Ancient fossils of the first ever organisms to exhibit movement have been discovered by an international team of scientists.
An international and multi-disciplinary team coordinated by Abderrazak El Albani at the Institut de chimie des milieux et matériaux de Poitiers (CNRS/Université de Poitiers) has uncovered the oldest fossilized traces of motility. Whereas previous remnants were dated to 570 million years ago, this new evidence is 2.1 billion years old. They were discovered in a fossil deposit in Gabon, where the oldest multicellular organisms have already been found.
Comparative genome content analyses provide insight into the early evolution of animals. A novel method that permits the use of larger datasets in such studies yields results that are consistent with classical views of animal phylogeny.
3.5 billion years ago Earth hosted life, but was it barely surviving, or thriving? A new study led by researchers at the Earth-Life Science Institute of Tokyo Tech provides new answers to this question. Microbial metabolism is recorded in billions of years of sulfur isotope ratios that agree with this study's predictions, suggesting life throve in the ancient oceans. Using this data, scientists can more deeply link the geochemical record with cellular states and ecology.
The 'perching birds,' or passerines, are the most common birds in the world today -- they include sparrows, robins, and finches. They used to be very rare. Scientists have just discovered some of the earliest relatives of the passerines, including a 52-million-year-old fossil with a thick, curved beak for eating seeds.