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Categories: Computer Science: Encryption, Paleontology: Early Mammals and Birds

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A new study has found that a class of toxins found in snake and mammalian venom evolved from the same ancestral gene.

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A new study has provided the most detailed timeline of mammal evolution to date.

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A 72 to 66-million-year-old embryo found inside a fossilized dinosaur egg sheds new light on the link between the behavior of modern birds and dinosaurs, according to a new study.

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A new extinct reptile species has shed light on how our earliest ancestors became top predators by modifying their teeth in response to environmental instability around 300 million years ago.

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Computer systems that are physically isolated from the outside world (air-gapped) can still be attacked. This is demonstrated by IT security experts. They show that data can be transmitted to light-emitting diodes of regular office devices using a directed laser. With this, attackers can secretly communicate with air-gapped computer systems over distances of several meters. In addition to conventional information and communication technology security, critical IT systems need to be protected optically as well.

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A study investigated the enigma of why sauropod fossils are only found at lower latitudes, while fossils of other main dinosaur types seem ubiquitously present, with many located in the polar regions.

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The evolutionary origin of endothermy (the ability to maintain a warm body and higher energy levels than reptiles), currently believed to have originated separately in birds and mammals, could have occurred nearly 300 million years ago.

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A study showed that -- within an appropriate framework -- gait recognition could be a viable technique for protecting individuals and their data from potential crime.

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A study finds that there is a 50 percent chance that the common ancestor of birds and dinosaurs had bright colors on its skin, beaks and scales, but 0 percent chance that it had bright colors on its feathers or claws.

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Though discovered more than 45 years ago, fossils of Earth's largest flying animal, Quetzalcoatlus, were never thoroughly analyzed. Now, a scientific team provides the most complete picture yet of this dinosaur relative, its environment and behavior. The pterosaur, with a 40-foot wingspan, walked with a unique gait, but otherwise filled a niche much like herons today. The researchers dispel ideas that it ate carrion and walked like a vampire bat.

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Mere spoonsful of soil pulled from Canada's permafrost are opening vast windows into ancient life in the Yukon, revealing rich new information and rewriting previous beliefs about the extinction dynamics, dates and survival of megafauna like mammoths, horses and other long-lost life forms.

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From 50,000 years to 6,000 years ago, many of the world's largest animals, including such iconic grassland grazers as the woolly mammoth, giant bison, and ancient horses, went extinct. The loss of these grazing species triggered a dramatic increase in fire activity in the world's grasslands, according to a new study.

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Researchers have developed a method for incorporating security in the physical nature of the wireless transmission signal for 5G and future networks.

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Researchers have used a nanoantenna to focus light onto a single semiconductor nanobox. This approach will enhance the utility of quantum repeater technology currently under development for advanced communication and data storage. Such technology is essential to overcoming the limitations of classical computer information for securely sharing information over long distances.

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Computer scientists have discovered an inexpensive way for tech companies to implement a rigorous form of personal data privacy when using or sharing large databases for machine learning.

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New research shows that humans had a significant role in the extinction of woolly mammoths in Eurasia, occurring thousands of years later than previously thought. An international team of scientists has revealed a 20,000-year pathway to extinction for the woolly mammoth.

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Human-caused bird extinctions are driving losses of functional diversity on islands worldwide, and the gaps they leave behind are not being filled by introduced (alien) species, finds a new study.

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The flying reptiles known as pterosaurs are the closest relatives of dinosaurs and were the first vertebrates to evolve powered flight. However, many details of pterosaur flight anatomy and performance are still unclear. According to a new study pterosaurs evolved a muscular wing-body junction to reduce drag and improve flight performance.

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To counter hacking, researchers have developed a new system based on the concept of 'zero-knowledge proofs', the security of which is based on the physical principle of relativity: information cannot travel faster than the speed of light. Thus, one of the fundamental principles of modern physics allows for secure data transfer.

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New examinations of skeletons and animal embryos have allowed researchers to discover how mammals developed protruding, flexible noses. This study contributes to uncovering the origin of mammals' strong sense of smell and creates the potential for new animal models, like chickens or frogs, that are often used in lab experiments to investigate facial development disorders such as cleft palate.