According to a recent study, T. rex and other theropod dinosaurs may have had lips, which contradicts the popular belief that they had teeth jutting out of their mouths.
Explains what Fossil Ida is, how it was discovered, and how it contributes to our understanding of Human Evolution. Finally, it answers the question whether Fossil Ida is the eagerly sought after "Missing Link" in Human Evolution.
According to a recent study, T. rex and other theropod dinosaurs may have had lips, which contradicts the popular belief that they had teeth jutting out of their mouths.
Explains what Fossil Ida is, how it was discovered, and how it contributes to our understanding of Human Evolution. Finally, it answers the question whether Fossil Ida is the eagerly sought after "Missing Link" in Human Evolution.
Similar to Ancient Wildebeest Cousin Boasted Bizarre Dinosaur-like Trait.pptx (20)
This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
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The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
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Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
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Ethnobotany and Ethnopharmacology:
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Ancient Wildebeest Cousin Boasted Bizarre Dinosaur-like Trait.pptx
1. Ancient Wildebeest Cousin Boasted Bizarre Dinosaur-like Trait
Researchers said Thursday the crescent-shaped protrusion atop the head of Rusingoryx, which roamed Africa's savannas tens of thousands of years ago, was
unlike anything on any other mammal, past or present. Instead, it resembled the head crests of a group of duckbilled dinosaurs called hadrosaurs.
The hollow structure may have enabled the horned, hoofed grass-eater to produce a low trumpeting sound to communicate over long distances with others in
its herd, said Ohio University paleontologist Haley O'Brien.
"This structure was incredibly surprising," O'Brien said. "To see a hollow nasal crest outside of dinosaurs and in a mammal that lived so recently is very bizarre."
The fossils of Rusingoryx, about the size of its close cousin the wildebeest, date from about 55,000 to 75,000 years ago. Hadrosaurs with similar nasal
structures, Lambeosaurus and Corythosaurus, lived about 75 million years ago.
O'Brien said the structure was an example of "convergent evolution" in which disparate organisms independently evolve similar features, like the wings of birds,
bats and the extinct flying reptiles called pterosaurs, to adapt to similar environments or ecological niches.
Secret communication
Rusingoryx led a lifestyle similar to hadrosaurs: herbivores both likely traveling in herds. Many scientists think hadrosaurs also used their crests to communicate
vocally with one another.
The researchers said Rusingoryx's nasal apparatus may have allowed it to deepen its normal vocal calls into "infrasound" levels other species may not have
been able to hear.
"Vocalizations can alert predators, and moving their calls into a new frequency could have made communication safer," O'Brien said.
The researchers examined six adult and juvenile Rusingoryx skulls. The bony crest, laying on the top and front of the skull, was mostly hollow inside. It
contained nasal passages that followed the outside of the structure then took an S-shaped pathway down into the soft tissue part of the airway. The nasal
passage then sat atop of a pair of large sinuses.
At least 24 Rusingoryx individuals were found at the site.
University of Minnesota paleoanthropologist Kirsten Jenkins said butchered bones and stone tools there indicated humans may have caused their deaths.
Jenkins said hunters may have driven a herd into the stream for an ambush.
The research was published in the journal Current Biology.
