A third finger has become so reduced that it is just a tiny bone in the flesh of the animal's hand. The thumb has a large claw while the second finger is more slender. The fingers on the 90-million-year-old fossil are similar to those of tyrannosaurs. This new dinosaur's "arms are short – about 2 ft long – which is less than the length of the thigh bone, and they have weak muscle attachments and poorly developed articulations indicating they had little strength," Peter Makovicky, associate curator of dinosaurs at the Field Museum of Natural History in Chicago who co-led the team that discovered Gualicho, describes in an email to the Monitor. Responsibility Banning books: Protecting kids or erasing humanity? Gualicho shinyae, discovered in Argentina in 2007, is named and described in a paper published Wednesday in the journal PLOS ONE. "There are a lot of different groups of theropods that tend to reduce the size of their hands and their arms or change the way that they're used." "Theropods in general do this quite often," Lindsay Zanno, head of the Paleontology Research Lab at the North Carolina Museum of Natural Sciences, tells The Christian Science Monitor in a phone interview. One of the most characteristic features of the iconic tyrant lizard dinosaur is its strange, seemingly uselessly small forelimbs.īut Tyrannosaurus rex wasn't the only two-legged carnivorous dinosaur to sport such teeny, two-fingered arms. What is the first step to mimicking the famous, fearsome dinosaur? After roaring, a person probably tucks both arms in, contorting them to make them tiny relative to the rest of the body, mashing the five fingers together to have just two digits on each hand. Whether in Europe or the Middle East or the U.S., it’s a deeply human subject. In 2015, the Monitor’s Simon Montlake wrote an excellent cover story on the subject: “Why countries are walling themselves in – and others out.” Last month, Henry Gass reported from Eagle Pass, Texas, where residents want both a secure border and humane treatment of migrants. He risks alienating liberals, but he is counting on his broader record, and anti-Trump sentiment, to save him.Around the globe, the politics of border walls is never easy. Biden’s latest moves show he’s working to counter perceptions of complacency during a border crisis. ![]() The 2024 presidential race may well be a Trump-Biden rematch, and “finish the wall” is a Trump rallying cry. ![]() illegally after July 31.The political element of both moves can’t be understated. ![]() In another sharp turnabout, the administration also said it would resume deporting Venezuelans who had entered the U.S. Biden has long maintained that walls don’t keep out unauthorized migrants, and when asked Thursday if he believes the border wall “works,” he was blunt: “No.”But the president faces a stark reality: Migrants have been surging across the border, often heading to other parts of the United States, and calls for federal help from Democratic mayors and governors are growing. border.President Joe Biden says his administration had no choice but to use the Trump-era funds and waive 26 federal laws and regulations to allow for the construction of 20 additional miles of wall in south Texas. In a stunning about-face, the Biden administration announced Thursday that it will expand former President Trump’s wall on the Mexico-U.S. “Build that wall!”The rally chant from Donald Trump’s first presidential campaign, repeated countless times since, now has an especially ironic significance.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |