And they say you can't teach openmindedness.
Dr. Phil Wilby and his team were thrilled to find the famed Victorian dig site in Wiltshire that had been lost for nearly 170 years. But when they dug in and examined an ordinary-looking rock , they found something they never expected: a perfectly preserved, 150 million-year-old ink sac. The ink inside was so well preserved that they were able to take a small amount of it, combine it with an ammonia solution, and make an ink with which they drew the creature’s portrait and wrote its Latin name: Belemnotheutis antiquus.
Argentina is home to two amusement parks and one zoo where having fun means completely ignoring the voice in your head that says, “This is not normal.” I know this because I recently visited all three and returned home physically and mentally battered. Does a weekend spent ambling around a Christian “experience,” watching children pretend to run a government, and petting adult lions sound enticing to you? If so, Argentina is your wonderland—specifically the area in and around Buenos Aires, where these attractions can be found within an hour’s drive from one another. My experience was challenging, to say the least; however, I must admit that I wasn’t bored for a single moment.
Stem cells have the remarkable potential to develop into many different cell types in the body during early life and growth. In addition, in many tissues they serve as a sort of internal repair system, dividing essentially without limit to replenish other cells as long as the person or animal is still alive. When a stem cell divides, each new cell has the potential either to remain a stem cell or become another type of cell with a more specialized function, such as a muscle cell, a red blood cell, or a brain cell.