One of the world's largest T. rex skeletons is heading to auction with a price tag of up to $30 million, and the 67-million-year-old giant could become the next record-breaking dinosaur fossil sale

Scientists found those who had used hormone replacement therapy were 10% less likely to be diagnosed with dementia Hormone replacement therapy may reduce the risk of dementia, a study has found. Scientists tracked more than 180,000 postmenopausal women in the UK in the largest study of its kind. They found that those who had used HRT were 10% less likely to develop any type of dementia and 16% less likely to be diagnosed with Alzheimer’s, the most common form, compared with those who had never used it...

Healthy eating rules are forcing brands to recook their recipes. Are consumers noticing the difference? Bite into a Ritz cracker today and you’re eating 80% less saturated fat than you would have been just a few years ago. The biscuit looks and snaps the same, and tastes close enough that most buyers have no idea they’re eating a new recipe. One of the biggest changes was swapping palm oil for sunflower oil, but there was much more to it than that. The reformulation took years to perfect in a laboratory, where scientists tested everything from density to how the cracker responds to heat, moisture and packaging...

The federal government recruits top experts to volunteer to advise on pressing research issues of the day. Since President Trump took office, hundreds of these experts have been dismissed.