List of All Articles with Tag 'i'

This summer's record-breaking marine heat wave may have been the "nail in the coffin" for an iconic species of coral that serves as a building block of marine life around Florida. Still, scientists see other "signs of hope" in the state's reefs.

Last week's Sunday Night Football game was a star-studded affair as Taylor Swift, Hugh Jackman, Ryan Reynolds, Blake Lively and several other A-listers packed i

It sounds like the plot of a Disney movie: a mountain lion named P-22, trapped from finding a mate by the Los Angeles freeway, becomes famous and inspires the construction of the world's largest wildlife overpass.

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Gerardo Martino gives his verdict on suggestions of Lionel Messi returning to Barcelona on loan from Inter Miami.

Pep Guardiola explains how and why he defended Arsenal manager and former Manchester City assistant Mikel Arteta when his job was at risk two years ago

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Everybody hurts sometimes – even the most basic worms in the animal kingdom which have no eyes, spine or brain. That’s what scientists have found out about nematode species Caenorhabditis elegans, which possesses basic emotions such as fear. Researchers zapped the worms to see if they would display negative reactions, and the worms continued to “flee” at high speeds for minutes after. The scientists at Nagoya City University in Japan and Northeastern University in the US said the response shows a brain state which is comparable to fear in humans. "These properties have been recently regarded as essential features of emotion, suggesting that C. elegans response to electric shock may reflect a form of emotion, akin to fear," the researchers wrote. The findings are the most recent in a debate over which animals can experience primitive versions of our own emotions. Crayfish and bumblebees have all shown animals can have lasting positive and negative mental states. C. elegans is one of the most basic worms in the animal kingdom. At about 1mm in length it is also tiny and transparent, with no brain, sight or smell. Nonetheless, worms which sensed an electric current for 45 seconds “ran away” for more than two minutes. During this state, they ignored food which was placed nearby, instead scurrying at high speeds. This suggests that the emotional response could be triggered by different stimuli and that one stimulus could inhibit responses to others. When the shock was just five seconds long, the worms fled for a minute and a half before calming down. And when the researchers repeated the experiments with worms that were not to produce neuropeptides – which are the equivalent to human hormones – the worms stayed in a state of fear for longer. "Because the requirement of neuropeptide signaling [in worms] is reminiscent of neuropeptide regulation of fear in mammals including humans, the fear-like brain state may be regulated by evolutionarily conserved molecular mechanisms," the authors of the study wrote. Sign up to our free Indy100 weekly newsletter Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

One person was killed and at least five others were were wounded in a shooting at a party in Indiana County, Pennsylvania, early Sunday, state police said.

A man in his 40s has died after he was struck by a vehicle on the M1 motorway.

Troops still trying to clear areas seized by Hamas, as dozens of Israeli hostages still missing.