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How did smart crow beak adapt to tool use?

From ScienceDaily: “This study shows that the unique bill contributes to the birds’ ability to use and probably make tools,” he said. “We argue that the beak became specialized for tool manipulation once the birds began using tools, and that this enhanced tool manipulation ability may have allowed the crows to make more complex tools.” Probably. It works that way with appendages too. In fact, some differences in apparent animal intelligence may come down to whether the animal can carry out an action for its own benefit. Shellfish are closer anatomically to octopuses than birds are but both octopuses and birds can use body parts to do something. Shellfish can’t. Can we quantify intelligence apart from the ability to demonstrate Read More ›

“Incredible ”bacterial rotors, varying torques, imaged

From ScienceDaily: By looking at distantly related bacteria from different branches of the evolutionary tree, the team speculate that the ability to alter torque in this way may have evolved up to two billion years ago. “Entire branches of the bacterial family tree have evolved motors with different torques, leading to a diversity of species each geared to their own environment,” said Dr Beeby. The team is now investigating how and when the evolutionary steps that altered motor torque happened. More. Evolved two billion years ago? That’s not a lot of time for Darwinian evolution, even if a wheel could be achieved that way, given enough monkeys, enough typewriters. See also: You’ll never guess why biological wheels are not irreducibly Read More ›

Did Neanderthals follow the Paleo diet?

Neanderthals diet: 80% meat, 20% vegetables, according to ScienceDaily: The paleo-diet is one of the new trends among nutrition-conscious people — but what exactly did the meal plan of our extinct ancestors include? “We have taken a detailed look at the Neanderthals’ diet,” explains Professor Dr. Hervé Bocherens of the Senckenberg Center for Human Evolution and Palaeoenvironment at the University of Tübingen, and he continues, “In the process, we were able to determine that the extinct relatives of today’s humans primarily fed on large herbivorous mammals such as mammoths and woolly rhinoceroses.” The two excavation sites in Belgium that were examined offered the international team of scientists led by the biogeologist from Tübingen a vast array of 45,000 to 40,000 Read More ›

Upload mind to computer: Status report

[cannot locate drive] From BBC News: So Itskov is putting a slice of his fortune in to a bold plan he has devised to bypass ageing. He wants to use cutting-edge science to unlock the secrets of the human brain and then upload an individual’s mind to a computer, freeing them from the biological constraints of the body. “The ultimate goal of my plan is to transfer someone’s personality into a completely new body,” he says. … But Itskov is far from home and dry. At Duke University, one leading neuroscientist argues that the brain’s dynamic complexity – from which the human condition emerges – cannot be replicated. “You cannot code intuition; you cannot code aesthetic beauty; you cannot code Read More ›

Children and great apes figure out tool use

The cottage industry attempting to show that great apes are just fuzzy people has a new one for us: From ScienceDaily: In one of the twelve tasks, children needed to use a stick as a lever to retrieve pom poms from a small box. Similarly, great apes use twigs to remove kernels from nuts or seeds from stingy fruits. The tasks could only be solved by using a tool, but children were not told that. Dr Claudio Tennie, Birmingham Fellow, explained, “The idea was to provide children with the raw material necessary to solve the task. We told children the goal of the task, for example to get the pom poms out of the box, but we never mentioned using Read More ›

Fish trapped in hole exchanges genes with neighbouring populations

From Nature News: The pupfish has evolved distinct differences from related species that live nearby, including reduced aggression, larger eyes and missing pelvic fins. But Many researchers thought that the fish species had been isolated in its cavern from around 13,000 years ago — the last time major flooding occurred in the region. But Christopher Martin, an evolutionary biologist at the University of North Carolina, Chapel Hill, and his colleagues say that genetic sequencing suggests that the pupfish became trapped in Devils Hole somewhere between 105 and 830 years ago — and since then has continued to exchange genes with neighbouring populations of pupfish species. “That was the big surprise,” says Martin. “Every few hundred years there’s a fish or Read More ›

Human evolution: “Race” to the bottom?

At Quillette, Brian Boutwell defends the concept of “race”: Evolution, as it applies to the social sciences, would have also made the list some decades back. But pioneers like E.O. Wilson, Leda Cosmides, John Tooby, David Buss, Margot Wilson, and Martin Daly (as well as a number of others) have absorbed many punches and blows for us younger generation of scholars. Their efforts produced a sizeable evidentiary base regarding the role that evolutionary processes have played (and continue to play) in sculpting human psychology. Debates still rage, and controversies still exist, but nowadays arguing that natural selection played some role in molding human psychology will no longer jeopardize your career. Huh? Far from thinking evolutionary psychology would jeopardize a career, Read More ›

Memo: Science in therapy, get angry more

From Quartz: The idea that papers are publishing false results might sound alarming but the recent crisis doesn’t mean that the entire scientific method is totally wrong. In fact, science’s focus on its own errors is a sign that researchers are on exactly the right path. Ivan Oransky, producer of the blog Retraction Watch, which tracks retractions printed in journals, tells Quartz that ultimately, the alarm will lead to increased rigor. There’s going to be some short-term and maybe mid-term pain as all of this shakes out, but that’s how you move forward,” he says. “It’s like therapy—if you never get angry in therapy, you’re probably not pushing hard enough. If you never find mistakes, or failures to reproduce in Read More ›

Are black holes real?, asks NOVA

Again? From NOVA:Today, there is wide scientific consensus that black holes are real. Even though they can’t be observed directly—by definition, they give off no light—astronomers can infer their hidden presence by watching how stars, gas, and dust swirl and glow around them. But what if they’re wrong? Could something else—massive, dense, all-but-invisible—be concealed in the darkness? A telescope as big as the Earth could tell a black hole from an exotic imposter. While black holes have gone mainstream, a handful of researchers are investigating exotic ultra-compact stars that, they argue, would look exactly like black holes from afar. Well, almost exactly. Though their ideas have been around for many years, researchers are now putting them to the most stringent Read More ›

Adaptation

Inspired by Michael Denton’s Evolution: Still a Theory in Crisis (2016)

How not to diss Darwin

It’s in the air. Talk of replacing Darwinism. See, for example: Don’t let zoologists hog the stage at the upcoming Royal Society rethink evolution meet. Long overdue for a serious discussion. That said, some cures really are worse than the disease. From Gatestone Institute, embedded in an article on the current bout of suppression of media in prospective EU member Turkey, Turkish law professor Ayse Isil Karakas, both a judge and elected Deputy Head of the ECHR, said that among all member states, Turkey has ranked number one in the field of violations of free speech. “619 lawsuits of freedom of expression were brought at the ECHR between 1959 and 2015,” she said. ” 258 of them — almost half Read More ›

Advocacy science wrong if other guy is doing it

From Hank Campbell at Science20, a potpourri of people he wishes didn’t have funds: Meanwhile, Denier For Hire groups like SourceWatch (see their executive director libel me here) who spend their time and money vilifying pro-science groups in every other area (food, technology, chemistry, energy, medicine) turned a blind eye to the advocacy research being done by the dark money people and corporations on the political side of the aisle that fund them. Crappy job, Hank, but someone has to do it. The popular science media are often a field demonstration of monochromatic advocacy. … Academics were not going to be duped by such faux political allies forever, and as time has gone on academic scientists have caught on to Read More ›

Scientism = junk science in the courtroom

Scientism: Believing that all correct answers come from science (and, in practice, that the answers offered on behalf of whatever counts for science in given situation is correct). How does that play out in the criminal justice system? From Kelly Servick at Science: … for decades, forensic examiners have sometimes claimed in court that close but not identical ballistic markings could conclusively link evidence to a suspect—and judges and juries have trusted their expertise. Examiners have made similar statements for other forms of so-called pattern evidence, such as fingerprints, shoeprints, tire tracks, and bite marks. But such claims are ill-founded, a committee at the National Academy of Sciences (NAS) concluded in 2009. “No forensic method has been rigorously shown to Read More ›

Tyson wrong on duck sex?

From Rachel Feltman at the Washington Post: Neil deGrasse Tyson, science aficionado. With over 5 million Twitter followers and two television programs, NDT probably has a wider audience than any science communicator in the world. He’s a brilliant astrophysicist and a fantastic spokesperson for all things cerebral. Zounds. The planet just might make it through the catastrophe anyhow. It started with this tweet: From Feltman again: Miriam Kramer from Mashable chimed in with ducks, because duck sex is literally the most terrifying thing on the planet and pretty much the only argument it takes to disprove intelligent design. More. That would only be an argument against intelligent design if the system didn’t work well, but it does. Not that Kramer Read More ›

Trilobite “behaviorally sophisticated”

If so, ethologist Patrick Bateson is onto something. But how would we know? From ScienceDaily: Most fossils preserve the physical remains of organisms and their structure; however, geologists and paleobiologists recently found fossils that show the behaviors of predators preserved as traces in ancient sediments. Thus, fossils from southeast Missouri are helping scientists unlock clues about the behaviors of these predators and their interactions with their prey. Evidence shows that these ancient organisms were behaviorally sophisticated, tailoring their attacks for effectiveness. Tracks from the site showed that the predators attacked from above, moving alongside to use their many legs for more effective grappling of their prey. Further, predators preferentially selected smaller prey, indicating that they attacked their food rather than Read More ›