Scientists have designed ways to "read" words directly from brains. Brain implants (植入物) can translate internal speech into external signals, allowing communication from people with paralysis (瘫痪) or diseases that steal their ability to talk or type. New results from two studies, presented on November 14 provide additional evidence of the extraordinary potential that brain implants have for restoring lost communication, says Leigh Hochberg, a physician at Massachusetts General Hospital in Boston.

"The new studies targeted internal speech, which requires that a person only think. Our device predicts internal speech directly, allowing the patient to just focus on saying a word inside his head and transform it into text," says Sarah Wandelt.

Neural signals associated with words are detected by electrodes (电极) implanted in the brain. The signals can then be translated into text, which can be made an oral speech by computer programs.

Another approach presented at the meeting, led by neuroscientist Sean Metzger of the University of California, San Francisco and his colleagues, relied on spelling. The participant was a man called Pancho who hadn't been able to speak for more than 15 years because of a disease. In this study, Pancho attempted to silently think code (代码) words, such as "alpha" for A and "echo" for E. By stringing these letters into words, he produced sentences such as "I do not want that" and "You have got to be kidding." Each session would end when Pancho attempted to squeeze his hand thereby creating a movement-related brain signal that refused the decoding (解码).

With this system, Pancho produced about seven words per minute. That's faster than the five words per minute his usual communication device makes, but much slower than normal speech, typically about 150 words per minute. The techniques will need to ger faster and more accurate to be useful. It's also unclear whether the technologies will work for people with more serious speech disorders. "These are still early days," Hochberg says.

Grizzly bears, which may grow to about 2.5m long and weigh over 400kg, occupy a conflicted corner of the American psyche-we revere(敬畏) them even as they give us frightening dreams. Ask the tourists from around the world that flood into Yellowstone National Park what they most hope to see, and the iranswer is often the same: a grizzly bear.

"Grizzly bears are re-occupying large areas of their former range," says bear biologist Chris Servheen. As grizzly bears expand their range into places where they haven't been seen in a century or more, they're increasingly being sighted by humans.

The western half of the U.S. was full of grizzlies when Europeans came, with a rough number of 50,000 or more living alongside Native Americans. By the early 1970s, after centuries of cruel and continuous hunting by settlers, 600 to 800 grizzlies remained on a mere 2 percent of their former range in the Northern Rockies. In 1975, grizzlies were listed under the Endangered Species Act.

Today, there are about 2,000 or more grizzly bears in the U.S. Their recovery has been so successful that the U.S. Fish and Wildlife Service has twice attempted to de-list grizzlies, which would loosen legal protections and allow them to be hunted. Both efforts were overturned due to lawsuits from conservation groups. For now, grizzlies remain listed.

Obviously, if precautions(预防) aren't taken, grizzlies can become troublesome, sometimes killing farm animals or walking through yards in search of food. If people remove food and attractants from their yards and campsites, grizzlies will typically pass by without trouble. Putting electric fencing around chicken houses and other farm animal quarters is also highly effective at getting grizzlies away. "Our hope is to have a clean, attractant-free place where bears can pass through without learning bad habits," says James Jonkel, longtime biologist who manages bears in and around Missoula.

My mother used to take me to my grandparents' in Belgium during the school holidays. While I would play chess with my grandfather, he would tell me stories about growing up, falling in love, and travelling around the world.

I didn't realize the importance of preserving memories until my grandfather passed away, which ultimately changed my outlook on remembering our loved ones and the stories we share. I thought about solutions to help other people record the precious memories for those they love—before it's too late. So I began matching ghostwriters (代笔人) to clients to help them write a book as smoothly and beautifully as possible, and Story Terrace was born.

Since then, we have explored the power of stories and their ability to connect us with our past and make sense of the present. It has been documented that increased family connection is significantly linked to less loneliness. Learning more about one's family history, however, has been linked to boosting emotional health, increasing compassion and providing a deeper sense of cultures and traditions.

What we have found through our own research is that so many of us have missed out on the opportunity to explore our origins. 56 percent of Brits agreed that much of their family history is lost because they are no longer able to speak with the person who knows the most about it. A further 51 percent expressed regret as they wished they could tell their younger self to document their family's life story, feeling that most of it had been forgotten. But when it comes to telling these stories, many don't know where to begin.

We have seen numerous times when people come to us with random journal entries and notes from over the years, and these can be developed into a wonderful work of art that can be passed down for generations to come.

Half of the projects we see at StoryTerrace are heritage stories, with family occupying a dominant theme for most stories. Alongside this, common themes we see are of course love, overcoming challenges, settling in new surroundings and so on. However, family is a thread that always ties these together.