Humanities & Social Sciences • Science • Technology • Weekly Selection
What ‘hok’ and ‘krak’ mean to monkeys The structure of monkey calls is surprisingly sophisticated: The same species of monkeys—located in separate geographic regions—use their alarm calls differently to warn of approaching predators. Futurity.org Life would drastically change if all bacteria disappeared Living for a time without bacteria is possible, but probably not very pleasant […]
Listeria monocytogenes is a food-borne Gram positive bacteria that causes the infection listeriosis. It is responsible for serious clinical manifestations including gastroenteritis, and meningitis and encephalitis in newborns, with 20 to 30 % of clinical infections resulting in death. It is a facultative intracellular pathogen that can invade and move within eukaryotic cells by polymerization […]
The human brain is arguably the most fascinating organ found in nature. Its complexity has been known since Santiago Ramón y Cajal pioneering work showed the central nervous system (CNS) was a contiguous neuronal network where neuron is the basic unit as opposed to the view of the brain being a single continuous network (reticulum) […]
Joint oscillation of Jupiter, sun might detect gravitational waves The joint oscillation of the sun and Jupiter might hold the key to detecting gravitational waves. Oscillations from Jupiter in 2011 were detected in frequencies that matched the sun’s. Researcher Ibrahim Semiz suggests that the oscillations might have been caused by gravitational waves, and other researchers […]
Let’s start with a thought experiment. We are looking up to a starry night sky. What if we turn off every star in our Galaxy? The heavens would become much darker, but some light sources would still be working. The Moon and planets? Great, let’s turn them off too. Yet another Solar System phenomenon would […]
Biochemistry • Biology • Materials • Molecular biology • Neuroscience
Some jellyfish species are beautifully fluorescent in the dark ocean, emitting light from different parts of their bodies in a process that is thought to help them to warn off predators. The molecular biology behind this process of glowing is possible thanks to one of the most famous proteins in molecular biology, the green fluorescent […]
In some beaches of Madagascar you can find in the sand, if you are lucky, fragments of egg shells that seem oddly large. They used to be, in fact, part of huge bird eggs, massive as watermelons (and able to become the most memorable omelet ever), laid by the avian titans: the extinct elephant birds […]
Planck data back standard cosmic evolution model, shake up dark-matter theories Data collected by the European Space Agency’s Planck space observatory have resulted in a detailed full-sky survey of the cosmic microwave background, the remnants of radiation left behind by the Big Bang 13.8 billion years ago, reaffirming the standard model of cosmic evolution. However […]
The Unknown Continent, t he White Desert. In the past only few -and brav e- people, such as Shackleton, Amundsen or Scott, dared to explore Antarctica. Nevertheless, in the fifties scientists started thinking that it was a very interesting place for doing research, due to its unique conditions, and started building more and more stations […]
Although not the most important among the many different animals studied by Charles Darwin during his amazing journeys on board the Beagle, the little finches from the Galápagos Islands have become one of the most popular representatives of Darwin’s theory of natural selection. They embody the process of speciation forced by environmental conditions, in the […]