
Walking with Dinosaurs dug up by BBC after 25 years
More than 25 years ago the BBC inspired a generation of palaeontologists with its Walking With Dinosaurs series.
Now it is hoping to repeat the trick with a follow-up underpinned by scientific discoveries in which viewers will be invited to 'peer at dinosaurs' brains, assess the quality of a T-Rex's vision and watch lasers reconstruct the colour of dinosaur eggs'.
The six-part series, which launches on BBC1 on May 25, will examine six of the prehistoric creatures including spinosaurus, velociraptors, giant lusotitans and 'Hollywood royalty' Tyrannosaurus rex.
Kirsty Wilson, showrunner of Walking with Dinosaurs, said that the second series represented a major evolution of the brand because it was underpinned entirely by scientific research.
'All of our dinosaur designs are grounded
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The Guardian
3 hours ago
- The Guardian
Do electric vehicles make people more carsick?
With electric cars skyrocketing in popularity around the world – in 2024, 22% of new car sales worldwide were electric vehicles, compared with 18% in 2023 – a growing body of studies and an increasing number of people have found that they feel more motion sick riding in EVs than in traditional petrol or diesel cars. Anecdotes of feeling sick in the passenger or back seat of electric cars litter social media, as do questions from wary prospective buyers. There is a scientific explanation behind why a person might feel more sick in an EV, though, according to multiple academic studies. 'Greater sickness in EVs can be attributed to a lack of previous experience, as both a driver and as a passenger, where the brain lacks accuracy in estimating the motion forces because it relies on previous experience in other types of cars,' said William Emond, a PhD student researching car sickness at the Université de Technologie de Belfort-Montbéliard in France. Though EVs are becoming more popular, combustion cars still dominate. Riders have a longer history with gas cars and so have had more time to adapt to their specific cues. If a person has spent most of their life driving a combustion engine car, their brain anticipates acceleration after the rev of the engine, a warning that they are about to experience a change in speed. In a battery-powered car, the electric motor makes no such noises. In addition to general unfamiliarity, research has found links between specific features common to electric vehicles and motion sickness. One 2024 study concluded that there were strong correlations between motion sickness severity and the seat vibrations of electric vehicles, while a 2020 study found that the lack of engine sound in an EV might be a major contributing factor to increased feelings of carsickness. 'If we are accustomed to traveling in non-EVs, we are used to understanding the car's motion based on signals such as engine revs, engine vibrations, torque, etc. Yet, traveling in an EV for the first time is a new motion environment for the brain, which needs adaptation,' Emond explains. Additionally, the regenerative braking technology used in EVs – where the motor converts the slowing car's kinetic energy into electricity that then is stored in the battery – results in low-frequency deceleration, meaning that the vehicle slows down gradually and steadily, over a relatively longer period, rather than rapidly or in quick pulses. Such low-frequency deceleration tends to be associated with higher levels of motion sickness. A 2024 study suggested the feature acted as one of the main triggers of motion sickness in electric vehicles. The study's authors wrote: 'Our results confirmed that higher levels of RB [regenerative braking] can induce MS [motion sickness].' Motion sickness is thought to be caused by a mismatch between various sensory signals the brain simultaneously receives about the body's movement. Specifically, it happens when the inner ear, which helps control balance, the eyes, and the body send conflicting information to the brain. 'Better knowledge on self-motion allows us to anticipate motion forces, which is crucial for motion sickness. Yet, when the motion forces as estimated or anticipated by the brain differ from what actually is experienced, then the brain interprets this 'neural mismatch' as a situation of conflict,' Emond said. 'If this conflict persists over time, it may surpass a threshold for triggering autonomic reactions of the body such as symptoms apparent to 'motion sickness'.' Being able to anticipate the movement of a vehicle appears to be integral to the experience of motion sickness, which is why people who are driving a car don't tend to experience symptoms. They know what is coming. The interplay between anticipation of motion and actual motion experienced may be why EVs are associated with worse motion sickness, as these vehicles provide fewer clues regarding upcoming movements. 'When discovering a new motion environment, the brain needs to habituate because there is no knowledge of previous experience in such a context. This is, for example, why almost everyone becomes sick in zero-gravity environments,' Emond says. As EV ownership continues to increase, some researchers are already looking into a solution for the cars' specific type of nausea. Several research papers have suggested that motion sickness in autonomous EVs could be treated by using visual signals, such as interactive screens and ambient lighting, or vibrational cues to allow a passenger's brain to anticipate motion changes, alleviating the lurching feeling in the back of an electric taxi.


The Independent
3 hours ago
- The Independent
Weight loss in your 40s and 50s can help slash your chronic disease risk, researchers say
Working to lose weight in your 40s and 50s may help to reduce your risk of developing a chronic disease, a new study reveals. Researchers based in the U.K. and Finland say they found health benefits in people who lost an average of 6.5 percent of their body weight in early middle age and maintained that weight loss throughout a period of 12 to 35 years. Those benefits especially include a lessened risk for cardiovascular disease and diabetes as well as an overall lower risk of death from chronic disease. 'The benefits of lifestyle-based weight management are widely discussed even though studies have found it surprisingly difficult to demonstrate health benefits beyond the prevention of diabetes,' University of Helsinki professor Dr. Timo Strandberg said in a statement. Strandberg was the lead author of the study which was published recently in the journal JAMA Network Open, the open-access journal of the American Medical Association. To reach these conclusions, the study tracked and analyzed the health of 23,000 white Europeans who were between the ages of 30 and 50 years old using data from three studies, conducted from 1985 to 1988, from 1964 to 1973, and between 2000 and 2013. They sorted the participants into four groups: people with persistent healthy weight, people who were overweight but became a healthy weight, people who were healthy and became overweight, and people who were overweight the entire time. 'Measurement of weight and height was conducted at a time when surgical and pharmacological weight-loss interventions were nearly nonexistent,' the authors noted. The cause of weight loss was not assessed, but given the age of the participants and lack of diagnosed disease, it was more likely intentional than caused by severe chronic conditions or frailty.' In one study, a reduction in body mass from overweight to normal weight over six years in mid-life was tied to a lower risk of developing chronic diseases. There was also a 48 percent lower risk for chronic illness compared to those who remained overweight, which largely held even after excluding participants who developed diabetes during follow-up. Another study showed a 57 percent risk for chronic illness. A third study, with the longest follow-up period, showed that weight loss in mid-life was associated with a 19 percent reduction in overall mortality. 'I'm certain that overall prevention of overweight and obesity starting in early life is absolutely the best thing to do,' Stranberg told The Independent. 'Our study indirectly proves this by showing that persistent healthy weight over the life-course is best.' He said that he hopes the findings will inspire people to see that lifestyle changes can lead to a longer life. 'This is particularly important today as more people are overweight than when the collection of our research data began 35 years ago,' he said in the statement.


BBC News
4 hours ago
- BBC News
Harvest mice return to Breary Marsh in Leeds after 50 years
The harvest mouse - Europe's smallest rodent - has returned to a city's marshlands after 50 tiny mice, which weigh less than a 50p coin, have been found at Breary Marsh in Leeds for the first time since L Preston, countryside ranger at Leeds City Council, said it was "fantastic" to see the mice back in Breary said: "It shows that all the work we've been doing in changing our practices has worked wonders for the natural habitat." According to the Mammal Society, the species was once widespread across the UK but has seen rapid declines in many areas due to changing farming practices, resulting in a loss of natural team at Breary Marsh believe the mice have returned because of a change to the way staff care for the have begun using traditional scything instead of mowing, and leaving areas of wildflower meadow, verges and wetlands uncut. According to the Wildlife Trust, harvest mice live in long, tussocky grassland, reed beds, hedgerows and around woodland struggle to live in thin or short grass, as the stems are too weak to support their spherical nests which they create from tightly woven grass, elevated from the ground in tall grasses.A monitoring programme has now been set up with Yorkshire Mammal Group to understand the spread of the mouse population on the Marsh is a Local Nature Reserve and Site of Special Scientific Interest, which borders Golden Acre Park in north Leeds. Listen to highlights from West Yorkshire on BBC Sounds, catch up with the latest episode of Look North.