Featured News

Genetic Secrets of Steller’s Sea Cow Revealed

The diversity of the Steller’s sea cow (Hydrodamalis gigas) was already declining some 900 to 800 years before its discovery by Georg Wilhelm Steller. Image credit: R. Ellis.
Feb 11, 2022 by News Staff

An international team of researchers has extracted and analyzed ancient DNA from fragmentary remains of 12 individuals of the Steller’s sea cow (Hydrodamalis gigas), an extinct sirenian and one of the largest Quaternary mammals, recovered from beaches of Bering Island. They’ve identified convergent evolution between Steller’s sea cow and cetaceans but not extant sirenians, suggesting a role of several genes in adaptation to cold aquatic environments....

read more...
An artist’s impression of the G29-38 white dwarf, accreting planetary material from a circumstellar debris disk; when the planetary material hits the white dwarf surface, a plasma is formed and cools via detectable X-ray emission. Image credit: Mark Garlick / University of Warwick.

White Dwarf Spotted Eating Planetary Debris

Feb 10, 2022 by News Staff

Astronomers using NASA’s Chandra X-ray Observatory have detected five X-ray events from G29-38, which is among the 100 closest white dwarfs. Their results...

An artist’s impression of Proxima d. Image credit: ESO / L. Calçada.

Potential Third Planet Discovered Orbiting Proxima Centauri

Feb 10, 2022 by Natali Anderson

Using data from the Echelle SPectrograph for Rocky Exoplanets and Stable Spectroscopic Observations (ESPRESSO) on ESO’s Very Large Telescope (VLT), astronomers...

Retinosaurus hkamtiensis, which was approximately 3.5 cm (1.4 inches) in length, prior to being trapped in tree resin 110 million years ago. Image credit: Stephanie Abramowicz.

110-Million-Year-Old Lizard Found in Burmese Amber

Feb 9, 2022 by Enrico de Lazaro

Paleontologists have found a new species of lizard in a piece of amber excavated from a mine in Myanmar. Retinosaurus hkamtiensis, which was approximately...

An artist’s impression of Abditosaurus kuehnei. Image credit: Oscar Sanisidro, Museu de la Conca Dellà.

New Species of Titanosaur Unearthed in Spain

Feb 9, 2022 by Enrico de Lazaro

Abditosaurus kuehnei, a species of titanosaurian sauropod dinosaur from the Cretaceous of Spain, is an immigrant lineage, distinct from some of the island...

The ecological reconstruction of Erratus sperare, showing the nektonic life style; the initial situation of trunk limbs, as flaps associated with weakly sclerotized endopods indicates a swimming rather than fully benthic habit. Image credit: Fu et al., doi: 10.1098/rstb.2021.0034.

520-Million-Year-Old Fossil Sheds Light on Origin of Gills in Arthropods

Feb 8, 2022 by News Staff

Erratus sperare, a new species of ancient marine arthropod from eastern Yunnan, China, had unique trunk appendages that represent an intermediate stage...

Holotype of Eophylica priscastellata. Image credit: Shi et al., doi: 10.1038/s41477-021-01091-w.

Two New Flower Species Found Preserved in Burmese Amber

Feb 2, 2022 by Enrico de Lazaro

Paleontologists have identified two new types of fossil flowers — one identical to those of the living genus Phylica and the other a sister to Phylica...

The Paleolithic settlement at Abu Hureyra in what is now Syria may have been destroyed 12,800 years ago because of a comet. Image credit: Jennifer Rice, Comet Research Group.

Near-Earth Comet Exploded over North America about 1,500 Years Ago

Feb 2, 2022 by News Staff

Archaeologists have found meteorites, microspherules, iridium and platinum anomalies, and burned charcoal-rich habitation surfaces at 11 archaeological...

The complex, cirrus-like emission from the Galactic center super bubble dominates this MeerKAT image. This is traversed by the Radio Arc, a complex of many parallel radio filaments. The radio bubble nestles against the diffuse Sagittarius A region in the lower center of the image. The bright dot near the center of this region is Sagittarius A*. Image credit: I. Heywood, SARAO.

Astronomers Release Unprecedented Radio Image of Milky Way’s Center

Feb 2, 2022 by Enrico de Lazaro

A new image from the MeerKAT telescope at the South African Radio Astronomy Observatory (SARAO) in Cape Town, South Africa, shows radio emission from numerous...

Astronomers Identify Second Earth Trojan Asteroid: 2020 XL5

Feb 1, 2022 by Enrico de Lazaro

2020 XL5 will be an Earth Trojan asteroid for at least 4,000 years, according to a paper published in the journal Nature Communications. This composite...

The number of tree species and individuals per continent in the Global Forest Biodiversity Initiative (GFBI) database. This dataset (blue points in the central map) was used for the parametric estimation and merged with the TREECHANGE occurrence-based data (purple points in the central map) to provide the estimates in this study. Green areas represent the global tree cover. GFBI consists of abundance-based records of 38 million trees for 28,192 species. Depicted here are some of the most frequent species recorded in each continent. Some GFBI and TREECHANGE points may overlap in the map. Image credit: Gatti et al., doi: 10.1073/pnas.2115329119.

There Are About 73,000 Tree Species on Earth, New Study Shows

Feb 1, 2022 by News Staff

Tree diversity is fundamental for forest ecosystem stability and services. However, because of limited available data, estimates of tree diversity at large...

The Meratus white-eye in the Meratus Mountains, South Kalimantan province, Indonesia, on July 9, 2016. Image credit: Eaton et al.

Two New Bird Species Discovered on Borneo

Jan 31, 2022 by Natali Anderson

Ornithologists have described two new species of the flycatcher genus Cyornis and the white-eye genus Zosterops from southeastern Borneo, Indonesia. The...

Twelfth-Century Chronicle Contains Description of Ball Lightning

Jan 28, 2022 by News Staff

Durham University professors Brian Tanner and Giles Gasper have found a credible description of ball lightning in a monastic chronicle compiled and composed...

The hogfish (Lachnolaimus maximus). Image credit: Brian Gratwicke / CC BY 2.0.

Sound Communication is Widespread among Fish, Study Says

Jan 28, 2022 by News Staff

New research led by Cornell University scientists shows that sound production appeared in the ray-finned fishes (clade Actinopterygii) circa 155 million...

Canadian Eskimo dogs. Illustration by John James Audubon and John Bachman (1845-1848).

Canine Genetic Mutation Associated with Small Body Size Arose More Than 53,000 Years Ago

Jan 28, 2022 by News Staff

Researchers have assembled a catalog of 1,431 genomes, inclusive of ancient canines, modern breed dogs, and wild canids, in a search for genetic variants...

This image from the Context Camera onboard NASA’s Mars Reconnaissance Orbiter shows Bosporos Planum on Mars; the white specks are salt deposits found within a dry channel; the largest impact crater in the scene is nearly 1.5 km (one mile) across. Image credit: NASA / JPL-Caltech / MSSS.

Water Flowed on Martian Surface as Recently as Two Billion Years Ago, Study Suggests

Jan 27, 2022 by News Staff

It’s commonly believed that Martian liquid water evaporated about 3 billion years ago, but a duo of planetary scientists from Caltech and Johns Hopkins...

Researchers Successfully Regrow African Clawed Frog’s Lost Leg

Jan 26, 2022 by News Staff

Limb regeneration is a frontier in biomedical science. Organisms such as the African clawed frog (Xenopus laevis) — whose limited regenerative capacities...

Watermelon is a unique fruit loved for its sweet juicy flesh and strong ties to hot summer days, picnics, and family gatherings. Image credit: Andrea Petra Fogas.

Regular Watermelon Consumption May Help Promote Cardio-Metabolic Health

Jan 26, 2022 by Natali Anderson

A team of researchers from the Department of Food Science and Nutrition at the Illinois Institute of Technology has reviewed the preclinical and clinical...

An artist’s impression of the James Webb Space Telescope. Image credit: ESA.

Webb Arrives at Second Lagrange Point of Sun-Earth System

Jan 25, 2022 by News Staff

On January 24, 2021, the NASA/ESA/CSA James Webb Space Telescope fired its thrusters for 297 seconds to complete the final post launch course correction...

Physicists Detect Exotic Particles in Quark-Gluon Plasma

Jan 25, 2022 by News Staff

Physicists from the CMS (Compact Muon Solenoid) Collaboration at CERN’s Large Hadron Collider have detected about 100 particles of a type known as X(3872)...

© 2011-2025. Sci.News. All Rights Reserved. | Back to top