Astronomy • Biology • Evolution • Geosciences
Are we alone in the universe? This is a question that has intrigued humans for centuries and inspired countless studies and works of fiction. But are we getting closer to finding this out? Now that the James Webb Space Telescope (JWST) is in operation, we might have taken one giant leap in being able to […]
Astronomy • Biology • Evolution • Geosciences • Planetary Science
An Earth-like planet named GJ 1252b orbiting an M dwarf — the most common type of star in the universe — appears to have no atmosphere at all. This discovery could cause a major shift in the search for life on other planets. Because M-dwarfs are so ubiquitous, this discovery means a large number of […]
The patriarchy, having been somewhat in retreat in parts of the world, is back in our faces . In Afghanistan, the Taliban once again prowl the streets more concerned with keeping women at home and in strict dress code than with the impending collapse of the country into famine. And on another continent, parts of […]
How fast is evolution? In adaptive evolution, natural selection causes genetic changes in traits that favour the survival and reproduction of individual organisms. Although Charles Darwin thought the process occurred over geological timescales, we have seen examples of dramatic adaptive evolution over only a handful of generations. The peppered moth changed colour in response to […]
Humanity is the unlikely result of 4 billion years of evolution. From self-replicating molecules in Archean seas, to eyeless fish in the Cambrian deep, to mammals scurrying from dinosaurs in the dark, and then, finally, improbably, ourselves – evolution shaped us. Organisms reproduced imperfectly. Mistakes made when copying genes sometimes made them better fit to […]
Cod “supergenes” have shed light on how they respond to overfishing, and these supergenes could make them more resilient to other environmental changes. That’s according to a new study published by scientists in Norway. This could be good news, in that cod have genetic architecture in place that will permit them to respond to climate […]
Oviraptorosaurs are a group of birdlike dinosaurs that were part of the ancestral dinosaur lineage that later gave rise to birds. Oviraptorosaurs walked on two legs, had a powerful toothless beak and were covered in feathers. One of the first known species, Oviraptor philoceratops, was discovered in the 1920s when a skeleton was uncovered alongside […]
For the first few million years of human evolution, technologies changed slowly. Some three million years ago, our ancestors were making chipped stone flakes and crude choppers. Two million years ago, hand-axes. A million years ago, primitive humans sometimes used fire, but with difficulty. Then, 500,000 years ago, technological change accelerated, as spearpoints, firemaking, axes […]
Original: Eduardo Angulo (2017) Preparados para matar: algunas ideas para el debate. Translated and adapted by Julio Nicanor Ozores, M.D. “ …the proper application of Darwinian thinking to human issues- of mind, language, knowledge, and ethics, for instance- illuminates them in ways that have always eluded the traditional approaches, recasting ancient problems and pointing to […]
The question of whether it is genes or environment that largely shapes human behaviour has been debated for centuries. During the second half of the 20th century, there were two camps of scientists – each believing that nature or nurture, respectively, was exclusively at play. This view is becoming increasingly rare, as research is demonstrating […]