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Surprising New Study Shows Crows Experience Complex Subjective Experiences and Consciousness

Crows experience conscious perception and subjective awareness in ways that are neurologically similar to humans and non-human primates.

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(TMU) – Consciousness is one of the greatest mysteries in the universe and humans are still in the dark on a wide range of related scientific questions, but a new paper is presenting a fascinating plot twist in the story of conscious perception on Earth. Based on the first experimental study of its kind, the authors suggest that crows experience conscious perception and subjective awareness in ways that are neurologically similar to humans and non-human primates.

The results of the new study provide the first experimental neurological data suggesting that crows – and, presumably, other birds and non-primate animals – are capable of vastly more complex cognitive processes than previously believed.

The lead author of the study, Andreas Nieder, says:

“The results of our study opens up a new way of looking at the evolution of awareness and its neurobiological constraints.”

Nieder and his neuroscience research team at the University of Tübingen conducted the study by measuring the brain signals of corvid songbirds as they received visual sensory input and simultaneously documenting their behavior. The results, which stunned the scientists, demonstrated the birds experience a form of conscious perception that was previously considered the domain of humans and other primates.

“Nerve cells that represent visual input without subjective components are expected to respond in the same way to a visual stimulus of constant intensity,” Nieder explains. “Our results, however, conclusively show that nerve cells at higher processing levels of the crow’s brain are influenced by subjective experience, or more precisely, produce subjective experiences.”

The reason the results were so surprising is that birds have very different brain structures than humans and non-human primates, who have a cerebral cortex. Until now, many scientists have considered the cerebral cortex the main mechanism for the production of strong subjective experiences. While crows and other corvid birds have demonstrated cleverness and the ability to solve puzzles, they were not thought to subjectively analyze the external world.

Brain scans from the new experiment suggest otherwise and, according to Nieder, this could have ramifications for how we study the origins of consciousness on Earth and its evolution across a wide variety of species.

“The last common ancestors of humans and crows lived 320 million years ago,” the neurobiologist states. “It is possible that the consciousness of perception arose back then and has been passed down ever since…the capability of conscious experience can be realized in differently structured brains and independently of the cerebral cortex.”

The finding could alter how we view the evolution of consciousness. Some scientists believe that there may have been multiple different forms of sentient awareness that developed independently across the world in different species.

In addition to bolstering the study of consciousness in non-human species, the work could help change the way we view animals in general, as we learn that they have their own universe of perception, replete with their own subjective feelings and reactions.

At the very least, the phrase “bird brain” may be on the chopping block.

Animals

Idaho Senate Approves Bill to Kill 90 Percent of State’s Wolves in “Brutal War”

Elias Marat

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Idaho’s legislature is swiftly moving forward with a bill that critics say would sanction a “brutal war” on wolves whereby up to 90 percent of the current wolf population would be killed in a bid to protect the interests of the state’s ranchers.

On Wednesday, the Idaho senate passed the measure by a 26-7 vote. The bill will now move forward to the House chamber, reports Associated Press.

Since teetering at the brink of endangerment years ago, wolf populations were removed from the state endangered species list in 2011. Since then, they have thrived despite Idaho allowing hundreds to be killed by hunters, trappers and state measures to control their numbers. Over the past two years, the wolf population has held steady at about 1,500.

According to federal guidelines, wolf recovery numbers require about 150 wolves in the state.

Republican supporters of the bill said during senate debates that the wolf population has grown entirely out of control, endangering the numbers of deer and elk available to hunters and harming the state economy.

“We’re supposed to have 15 packs, 150 wolves. We’re up to 1,553, was the last count, 1,556, something like that. They’re destroying ranchers. They’re destroying wildlife. This is a needed bill,” said Republican state Sen. Mark Harris. 

However, critics have blasted the move as rash and potentially damaging to the state’s wildlife.

The Idaho Senate’s sudden move to pass this bill in the eleventh hour incentivizes the cruel deaths of more than 1,000 wolves across the state,” said Andrea Zaccardi, a senior attorney at the Center for Biological Diversity. 

“This brutal war on wolves must be stopped, and we urge the House to deny this bill,” Zaccardi added.

Maggie Howell, the head of the Wolf Conservation Center, also described the move as the latest in a hostile and extreme campaign against wolves that fails to take into account the creatures’ value to the local ecology.

“Beyond the wanton cruelty and devastation the passage of this bill would bring to wolves, this legislation poses a threat to wolves nationwide,” she told the New York Times. “With the Trump administration’s decision to transfer wolf management authority from the federal government to the states, Idaho’s policies can influence expectations about wildlife management beyond its borders.”

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As Marine Life Flees the Equator, Global Mass Extinction is Imminent: Scientists

Elias Marat

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The waters surrounding the equator are one of the most biodiverse areas in the globe, with the tropical area rich in marine life including rare sea turtles, whale sharks, manta rays, and other creatures.

However, rampant rises in temperate have led to a mass exodus of marine species from the sensitive region – with grave implications for life on earth.

While ecologists have long seen the thriving biodiversity of equatorial species holding constant in the past few centuries, a new study by Australian researchers published in The Conversation has found that warming global temperatures are now hitting the equator hard, potentially leading to an unprecedented mass extinction event.

The researchers from the Universities of Auckland, Queensland, and the Sunshine Coast found that as waters surrounding the equator continue to heat up, the ecosystem is being disrupted and forcing species to flee toward the cooler water of the South and North Pole.

The massive changes in marine ecosystems that this entails will have a grave impact not only on ocean life – essentially becoming invasive species in their new homes –  but also on the human livelihoods that depend on it.

“When the same thing happened 252 million years ago, 90 percent of all marine species died,” the researchers wrote.

To see where marine life is headed, the researchers tracked the distribution of about 49,000 different species to see what their trajectory was. The global distribution of ocean life typically resembles a bell curve, with far fewer species near the poles and more near the equator.

However, the vast alteration of the curve is already in motion as creatures flee to the poles, according to a study they published in the journal PNAS.

These changes augur major disruptions to global ecosystem as marine life scrambles in a chaotic fight for food, space, and resources – with a mass die-off and extinction of creatures likely resulting.

The research underscores the dire need for human societies to control rampant climate change before the biodiversity and ecological health of the planet is pushed past the point of no return.

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Rare Creature Photographed Alive In The Wild For The First Time Ever

Elias Marat

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Advances in the methods used by researchers to watch wildlife have allowed for the photographing of a rare creature whose image had never been captured in the wild before.

Researchers in the West African nation of Togo were able to spot the rare Walter’s duiker, a rare species of petite African antelope, for the first time in the wild thanks to camera traps equipped with motion sensors.

In addition to the Walter’s duiker, the camera traps were also able to discover rare species of aardvarks and a mongoose, reports Gizmodo.

At a time when the extinction of entire species is becoming more common worldwide, such devices should help conservationists not only preserve creatures sought by bushmeat hunters but also spot rare animals whose presence is elusive for human observers. In the past, biologists were forced to rely on the same hunters for information.

“Camera traps are a game changer when it comes to biodiversity survey fieldwork,” said University of Oxford wildlife biologist Neil D’Cruze.

“I’ve spent weeks roughing it in tropical forests seemingly devoid of any large mammal species,” D’Cruze continued. “Yet when you fire up the laptop and stick in the memory card from camera traps that have been sitting there patiently during the entire trip—and see species that were there with you the entire time —it’s like being given a glimpse into a parallel world.”

The Walter’s duiker was discovered in 2010 when specimens of bushmeat were compared to other duiker specimens. The new images of the creature are the first to have been seen.

Rare species like Walter’s duiker are often not listed as “endangered” by groups like the International Union for Conservation of Nature due to a lack of data.

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