Enslaved worker ants fight back through acts of sabotage. What's particularly fascinating about this discovery is that the enslaved ants are not the ones passing the "destroy enemy pupae" genes to the next generation.
Instead, this characteristic is arising and being reenforced among the free ants. [Puts on evolutionary biologist wizard's hat] Ahem. While learned behavior is certainly possible, I wouldn't completely exclude genetic causes, or at least a genetic predisposition towards this behavior. Why the mantis shrimp is my new favorite animal. How Dolphins communicate with images, cymatics and SpeakDolphin videos. Dolphin whistle instantly translated by computer - life - 26 March 2014. Software has performed the first real-time translation of a dolphin whistle – and better data tools are giving fresh insights into primate communication too IT was late August 2013 and Denise Herzing was swimming in the Caribbean.
The dolphin pod she had been tracking for the past 25 years was playing around her boat. Suddenly, she heard one of them say, "Sargassum". "I was like whoa! How we see color - Colm Kelleher. This Machine Can 3-D Scan Your Insides In A Single Heartbeat. In a quarter of a second, this new CT scanner can take a perfect 3-D photo of your brain or heart.
The underlying technology is nothing new, since CT scanners have been around for 40 years. But they’ve never been nearly this fast. Under Pressure, Does Evolution Evolve? In 1996, Susan Rosenberg, then a young professor at the University of Alberta, undertook a risky and laborious experiment.
Her team painstakingly screened hundreds of thousands of bacterial colonies grown under different conditions, filling the halls outside her lab with tens of thousands of plates of bacteria. “It stank,” Rosenberg recalled with a laugh. “My colleagues hated me.” The biologist, now at Baylor College of Medicine in Houston, hoped to resolve a major debate that had rocked biology in different incarnations for more than 100 years. The Selfish Gene is losing friends. Czteroniciowa Struktura DNA Znaleziona w Komórkach. Scientists Finally Show How Your Thoughts Can Cause Specific Molecular Changes To Your GenesTunedBody. With evidence growing that training the mind or inducing certain modes of consciousness can have positive health effects, researchers have sought to understand how these practices physically affect the body.
A new study by researchers in Wisconsin, Spain, and France reports the first evidence of specific molecular changes in the body following a period of intensive mindfulness practice. The study investigated the effects of a day of intensive mindfulness practice in a group of experienced meditators, compared to a group of untrained control subjects who engaged in quiet non-meditative activities. Sea otter, dolphin, and penguin behavior: Your favorite animals are jerks.
Photo by Moritz Buchty/Shutterstock I’m going to ruin sea otters for you.
Or at least I’m going to tarnish their reputation as some of the most charming little beasties in the seas. Ants Are Capable of Changing Their Priorities. Ants are highly social and they must work together to provide food and shelter for the entire colony.
It has recently been discovered that there is no set hierarchy on the importance of these aspects, as ants are capable of learning from previous experience to assess a current situation and determine what is most important at that time. Takao Sasaki and Stephen C. Pratt from Arizona State University’s School of Life Sciences have published their findings in Biology Letters. The study was focused on Temnothorax rugatulus, an ant species native to the west coast of North America, stretching from British Colombia, Canada down to Arizona in the Sonoran Desert. Scientists Sign Declaration That Animals Have Conscious Awareness; Just Like Humans.
Male and female brains wired differently, scans reveal. Scientists have drawn on nearly 1,000 brain scans to confirm what many had surely concluded long ago: that stark differences exist in the wiring of male and female brains.
Maps of neural circuitry showed that on average women's brains were highly connected across the left and right hemispheres, in contrast to men's brains, where the connections were typically stronger between the front and back regions. Ragini Verma, a researcher at the University of Pennsylvania, said the greatest surprise was how much the findings supported old stereotypes, with men's brains apparently wired more for perception and co-ordinated actions, and women's for social skills and memory, making them better equipped for multitasking. "If you look at functional studies, the left of the brain is more for logical thinking, the right of the brain is for more intuitive thinking. So if there's a task that involves doing both of those things, it would seem that women are hardwired to do those better," Verma said.
Watch How a Leopard Reacts When It Finds Out Its Prey Has a Newborn. Strange and Improbably Animal Friendships! (30 pics) 100 Years of Breed “Improvement” For the sake of honest disclosure, I will admit to owning “purebreds” (the ‘pureness’ of purebreeds is a discussion for another time) but I also have mutts.
All the dogs I’ve had since childhood had a few things in common, they were friendly, prey driven, ball-crazy, intense, motivated, athletic (crazy dogs are easier to train) and none had intentionally bred defects. I would never buy/adopt a dog whose breed characteristics exacted a health burden. How does complex behavior spontaneously emerge in the brain? (Phys.org) —The idea of emergence, in which complex behavior spontaneously emerges out of simple interactions, exists in a wide variety of areas, such as economics, the Internet, and urban development.
But perhaps the ultimate example of emergence is in the brain, where thousands of randomly firing neurons spontaneously reach a coherent state of collective, periodic firing that underlies all brain functions. Despite significant progress, the mechanisms responsible for the origin and maintenance of spontaneous neuronal activity are still poorly understood. In a new study published in Nature Physics, a team of researchers from Spain has shown that emergence in neuronal networks can be explained as a noise-driven phenomenon that is controlled by the interplay between network topology and intrinsic neuronal dynamics. The researchers arrived at this explanation by combining high-resolution calcium imaging experiments of rat cortical neurons with simulations.
Lab-Grown Model Brains. Cross-section of cerebral organoid; All cells in blue, neural stem cells in red, and neurons in green. MADELINE A. LANCASTERIn an Austrian laboratory, a team of scientists has grown three-dimensional models of embryonic human brains. Dinosaur Feathers Discovered in Canadian Amber. 'TomTato' tomato and potato plant unveiled in UK. 26 September 2013Last updated at 11:59 GMT. Photos of the Amazing and Gruesome World Under a Microscope. I'm sorry if your mom only made you terrible slimy canned brussels sprouts, but you know not of what you speak.
They are the best. To each his own, but I have been treated to some very fine fresh recipes prepared by excellent cooks. That I didn't like at all, with one notable and never repeated exception. Some people taste a bitter chemical in brassicas (cabbage, cauliflower, broccoli, and brussels sprouts) that is flavorless to others. Your dislike of brussels sprouts may be genetic. A Pacific Culture among Wild Baboons: Its Emergence and Transmission. Results/Discussion Circumstances Leading to the Emergence of a Unique Culture.
Memory Implants May Start Human Trials In 2 Years. A team of neuroscientists from the University of Southern California (USC), Wake Forest University (WFU), the University of Kentucky and DARPA have developed a memory implant technique that could help restore memories lost by stroke and localized brain injury. Electrode array feeds neural activity in the hippocampus to the chip which delivers output to the rest of the brain, bypassing damaged tissue. The first step in restoring memories is to record, in undamaged tissue, the unique activity patterns associated with the formation of particular memories. Technion Scientists Develop Advanced Biological Computer. Creepy or Cool? Portraits Derived From the DNA in Hair and Gum Found in Public Places.
Researchers find electrical current stemming from plants. Scientists design new adaptive material inspired by tears. Scientists Invent Oxygen Particle That If Injected, Allows You To Live Without Breathing. Meet the first HEARTLESS man who is able to live without a heartbeat or a PULSE. Tree.pdf. Monsanto 1901-2012 Timeline. Juan Enriquez: Czy nasze dzieci będą innym gatunkiem? Robert M Sapolsky. Tame Theory: Did Bonobos Domesticate Themselves?
This is your brain on sugar: UCLA study shows high-fructose diet sabotages learning, memory. How to see white blood cells in your eye - the Blue Field Entoptic Phenomenon. Why we have blind spots - and how to see the blood vessels inside your own eye! Mouse breathing water.