Tag Archives: years

Dire wolves (Canis dirus) are considered to be one of the most common and widespread large carnivores in Pleistocene America, yet relatively little is known about their evolution or extinction. Previous analyses, based on morphology alone, had led scientists to believe that these long-extinct canids were closely related to modern …

A new genus and species of medium-sized python that lived during the early-middle Eocene period has been identified from several nearly complete skeletons and partial skulls found in Germany. Messelopython freyi. Image credit: Senckenberg Research Institute. The newly-identified python species lived in what is now Germany, approximately 47.6 million years …

Non-marine animals (amphibians, reptiles, birds and mammals) have apparently experienced at least 10 distinct episodes of intensified extinctions over the past 300 million years. Eight of these extinction events are concurrent with known marine mass extinctions, which previously yielded evidence for an underlying period of 26.4 to 27.3 million years …

In a new study published in the journal Science, an international team of scientists sequenced the genomes of 27 ancient dogs, some of which lived up to nearly 11,000 years ago, across Eurasia. The researchers found that dogs likely arose once from a now-extinct wolf population and that by 11,000 …

In a new study published this week in the journal Nature, a team of researchers from the United Kingdom combined fossil records with a new model of flight to measure flight efficiency in pterosaurs and fill in gaps in our knowledge of their evolutionary story. The scientists were able to …

The Antarctica’s ozone hole has now reached its maximum size, according to an analysis of data collected by ESA’s Copernicus Sentinel-5P satellite. This year’s ozone hole over Antarctica is one of the largest in recent years. Image credit: ESA. Each year for the past few decades during the southern hemisphere …

  Note: This article assumes that Zen 3 will deliver the 1.19x IPC improvement it has promised over the Zen 2 / Ryzen 3000 CPU family. AMD’s Zen disclosures have consistently been accurate enough that I am comfortable making that assumption. When AMD launches Zen 3 on November 5, it …

The Canaanite palatial site of Tel Kabri in Israel was severely damaged by a large earthquake around 1700 BCE, which led to its abandonment soon thereafter, according to new research by archaeologists from the University of Haifa and George Washington University. The 3,700-year-old ruins of the wine cellar unearthed at …

  During the height of the space race in the 1960s, the US launched a series of satellites designed to study the planet. The six Orbiting Geophysical Observatory (OGO) spacecraft improved our understanding of Earth’s magnetic field, shutting down a few years later. However, one of those forlorn satellites known …

The inner core of our planet is between 1 and 1.3 billion years old, according to new research led by the University of Texas at Austin and Carnegie Institution for Science. Earth’s internal structure: dense solid metallic core, viscous metallic outer core, mantle and silicate based crust. Image credit: NASA. …