Developmental tracing in mice shows the TMJ disc forms independently of the condyle with a tendon-like molecular signature, supporting its evolutionary origin from a trapped tendon.
Published in Applied Microscopy, the study investigates how the structural organization of the integument supports the species' survival in fluctuating coastal and estuarine environments.
For decades, researchers have observed that rates of evolution seem to accelerate over short time periods -- say five million years versus fifty million years. This broad pattern has suggested that "younger" groups of organisms, in evolutionary terms, have higher rates…
A new reconstruction of spore evolution shows that the ancestor of all land plants bore trilete spores, forcing a recalibration that places land plant origins in the Late Ordovician, about 55 million years later than previous molecular estimates.
Development, Genes and Evolution, one of the oldest journals in developmental biology, has published its last issue under its current name. In a farewell editorial, Editor-in-Chief Angelika Stollewerk announced that she is stepping down at the end of 2024 and that…
Inside San Diego’s Natural History Museum, Tom Deméré pulled out drawers that line cabinets in the paleontology department. They hold ancient shells and bones that come to San Diego from all over the world. The fossils can be tucked away…
Dr. Andrei Mihai is a geophysicist and founder of ZME Science. He has a Ph.D. in geophysics and archaeology and has completed courses from prestigious universities (with programs ranging from climate and astronomy to chemistry and geology). He is passionate…
UC Davis and Peking University researchers identify 73.7 cm marine amphibian fossil formed at least 30 km offshore Fossils of a gigantic “armored frog” more than 70 cm long have been discovered. Unlike living amphibians, it is thought to have spent its entire…
Integrating DNA barcoding with morphology, researchers have identified two new cryptic Niphargus amphipod species from springs in central Iran, revealing recent speciation hidden beneath near-identical appearances. Subject of Research: Cryptic species delimitation in groundwater amphipods of Iran using molecular and…
Using lineage tracing, high-resolution microscopy and immunohistochemistry, the team followed the interactions between the two germ layers as the POG was pushed onto the embryonic surface in bichir, gar and sturgeon embryos. The results reveal that the three species achieve…
Fossils of ancient life beyond the dinosaurs: the Cambrian explosion, early animals and plants, insects in amber and the first mammals.
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