I’ve always enjoyed the idea of travelling and volunteering for a few months in southern Europe and living close to the sea, surrounded by nature, staying with the locals and exploring their culture. So when I had a chance to make this daydream a reality, I decided to apply for my first experience on a farm in Portugal.

The farm is located a few kilometers away from Lagos, in a remote location in the hills. It was designed around the idea of connecting nature and technology in a green way and with a self-sustainable approach. My host, Lucio, is really passionate about the do-it-yourself initiative or maker culture. He built and decorated his house using natural materials. He changed the shipping container into an electronic lab.

When my host learned that I majored in electronics at college, he was very trusting and encouraged me to work on one of the most important issues on the farm — the water well’s pump operation. Since the well was the only water source for the entire farm, it turned out to be a tough task for me. I wasn’t even sure if I could do it in the beginning, but with my host’s encouragement, I gradually made progress and was able to build a working prototype (原型).

Lucio was very excited when we connected the DIY prototype I built to the pump control panel successfully. I still remember the moment when Lucio shook my hand with a big smile and thanked me for solving one of the farm’s most difficult problems. With his trust, I got to work on more complex projects afterwards too!

Before this volunteer experience, I never thought my help would be so appreciated. I realized that I could make a very positive impact on people’s lives by sharing knowledge to build something useful.

A new unnamed species of crocodile (鳄鱼) indigenous to Australia has been found in the middle of the outback. The species of crocodile presently on extinction, belonging to the Baru crocodile, is new to experts despite the fact that the animal wandered around the Australian continent 25 million years ago.

Adam Yates, senior leader of earth sciences, said that Australia’s suitable instance of the crocodile’s bone was discovered in 2009 at the site of Alcoota Fossil which is eight million years old and is 200 kilometers north-east of Alice Springs, Australia. Dr. Yates revealed that other specimens (样本) had been discovered before. He said, “This specific specimen is one of the last of its kind. It is the nicest and the bone of the Baru crocodile is the most complete among all that have ever been discovered so far.” Thanks to the bone’s condition, Dr. Yates said that it would turn into the name-bearing specimen or what he referred to as “the holotype (正模标本)” of the new species.

Dr. Yates revealed that the modern Australian crocodile is known for being ancient and fixed, but that is not really true. “The current Australian crocodiles are truly new arrivals on the Australian continent. They are part of the genus Crocodylus, which likely has its origins in Africa,” he said. “This species of crocodile immigrated and conquered Australia just a few million years ago. However, Australia’s main native crocodiles, like this one, have totally gone extinct,” he continued.

Dr. Yates also revealed that the size of this Baru crocodile can be compared to a recent saltwater crocodile; however, due to the fact that the bone is strong, it would have had more weight. He said it is likely that it weighed more than a saltwater crocodile of an equal length. So they are looking towards many hundreds of kilos. Studying the details of the bone will bring hints not only to the altering state of Australia’s environment from ancient times till now, but also to how this specific crocodile varies from other species that are known.

He also said they have to get down to the details of its structure and make a demonstration on why the structure of this one is sort of different from all the other species of ancient crocodile from Australia that are known.

Dr. Yates said the size of the bone shows that the animal was very powerful. “Its actually powerfully built heavy, thick, deep jaws, and really large teeth all imply that this was a crocodile that specifically takes megafauna (巨型动物),” he said. He added that modern crocodiles mostly survive on small prey and small fish. This guy didn’t survive on small things. Dr. Yates said modern saltwater crocodiles also had the ability of taking larger animals.