In 1823, a young woman noticed a strange fossil on a beach near Lyme Regis, England. She dug out the bones and had them carried to her home. She carefully arranged the skeleton on a table. Then she saw something extraordinary. The creature's neck was a meter long-more than half the length of its body. It was unlike any animal living on Earth.

Even at a young age, Mary Anning had a talent for spotting "curies" fossils. Her father died in 1810, leaving her family in debt, so Mary began selling her fossils to collectors. A year later, aged just 12, she made her first major discovery—a crocodile-like skull with a long skeleton. It turned out to be a sea creature that lived long ago. Named ichthyosaur, or "fish-lizard", it was the first extinct animal known to science.

Fossil hunting brought in money, but it was a dangerous occupation. One day, a rock fall killed her dog and almost buried Mary. Despite the dangers, she continued to look for new finds. The long-necked fossil she uncovered in 1823 was another long-dead sea reptile. Known as a plesiosaur, it would inspire legends—including that of the Loch Ness Monster.

Mary was not only a skilled fossil hunter, she also carefully examined and recorded her finds. However, she received little credit from other scientists. Only one of her scientific writings was published in her lifetime, in 1839. She was also not allowed to join London's Geological Society, as only men could become members.

Mary Anning died in 1847, but her contributions have not been forgotten. Her finds are now displayed in museums in London and Paris. The beach near her home is a UNESCO World Heritage Site, known as the Jurassic Coast. Her life continues to inspire visitors hoping to find their own fossil wonders. According to Britain's Natural History Museum, Mary Anning was "the greatest fossil hunter the world has ever known". She was also a scientist who changed the way we think about life on Earth.

Some people say they “never forget a face.” But what does that saying mean? Is there really no limit to the number of faces a person can remember? A new study from a group of researchers at the University of York in England has found that, on average, people can remember as many as 5,000 faces. They published their findings on facial recognition this month in the Proceedings of The Royal Society B, Biological Sciences.

Rob Jenkins works in the psychology department at the University of York. He said the researchers’ study centered on “the number of faces people actually know”. The study suggests our facial recognition abilities help us to deal with the many different faces we see on the screens, as well as those we know, like family and friends.

For the human study, people spent one hour writing down as many faces from their personal lives as possible. Some examples may include people they went to school with, people they work with and family members. Then, they wrote down famous faces they know, such as actors, politicians and other public people.

The results showed that the participants(参与者) knew between 1,000 and 10,000 faces. Jenkins said one explanation may be that some people have a natural ability for remembering faces. “There are differences in how much attention people pay to faces and how well they process the information,” he said. Jenkins also said it could be because of different social environments. Some people may have grown up in more populated places. So, they may have had more social contact throughout their lives.

The people in the study included 25 men and women students from two universities. They were between 18 and 61 years old. Researchers think age may be an interesting area for further research. Jenkins said it is possible that we gather more faces throughout our lifetime. But, he added, there also may be an age at which we start to find it harder to remember all of those faces.