Here is a summary of current scientific news.
Changes in eye sockets amplified bite force in T. rex and friends
Tyrannosaurus rex possessed impressive biting force, with the enormous carnivorous dinosaur’s bite-bone estimated at around 8,000 pounds (3,630 kg) of power, or about the weight of three small cars. This bite force was aided in T. rex and other large predatory dinosaurs by an intriguing evolutionary modification of the skull, with the eye socket – called the orbital bone – becoming elliptical or keyhole-shaped rather than circular, according to a study published Thursday. .
Satellite imagery shows Antarctic sea ice is collapsing faster than expected
Antarctica’s coastal glaciers are shedding icebergs faster than nature can replenish crumbling ice, doubling previous estimates of losses from the world’s largest ice sheet in the past 25 years, a researcher revealed on Wednesday. satellite analysis. The first-of-its-kind study, conducted by researchers at NASA’s Jet Propulsion Laboratory (JPL) near Los Angeles and published in the journal Nature, raises new concerns about how quickly climate change is weakening the platforms of floating ice of Antarctica and accelerating the rise of global sea levels.
Climate risks overshadow Europe’s energy crisis, warns space chief
The head of the European Space Agency (ESA) has warned that economic damage from heatwaves and drought could overshadow Europe’s energy crisis as he calls for urgent action to tackle climate change . Managing Director Josef Aschbacher told Reuters that successive heat waves along with wildfires, shrinking rivers and rising land temperatures measured from space left no doubt about the consequences of climate change on Europe. agriculture and other industries.
Crucial evolutionary change helped pave the way for human speech
Scientists have identified evolutionary changes in the voice box distinguishing people from other primates that may underlie an ability much needed by humanity – to speak. Researchers said on Thursday that an examination of the voice box, known as the larynx, in 43 primate species showed that humans differ from great apes and apes in lacking an anatomical structure called the vocal membrane. – small ribbon-like extensions of the vocal cords.
Exclusive-Europe eyes Musk’s SpaceX to fill launch void left by tensions with Russia
The European Space Agency (ESA) has entered preliminary technical discussions with Elon Musk’s SpaceX that could lead to the temporary use of its launchers after the conflict in Ukraine blocked Western access to Russian Soyuz rockets. Private US competitor to Europe’s Arianespace has emerged as a key contender to fill a temporary void alongside Japan and India, but final decisions hinge on the still-unresolved schedule for Europe’s delayed Ariane 6 rocket.
The remains of a small armored dinosaur discovered in Argentina
Paleontologists announced on Thursday the discovery of a previously unknown small armored dinosaur in southern Argentina, a creature that likely walked upright on its hind legs wandering through a then-humid landscape around 100 million years ago. . The Cretaceous period dinosaur, named Jakapil kaniukura, would have been well protected with rows of bony disc-like armor along its neck and back and down to its tail, they said. He was about 5 feet (1.5 meters) long and weighed only 9 to 15 pounds (4 to 7 kg), like an average house cat.
(With agency contributions.)