COLUMN. A study conducted in the US, on a dry hill in Colorado, has revealed their secret: They curl up and reverse their curvature into a bowl shape. These snakes even share the wealth.

Growing urban populations, more public awareness of pollution and ambitious redevelopment plans propel big drinking water and wastewater treatment investment in two key cities.

What is the biggest snake in the world? With more than 3,000 species of snakes living around the globe, there are a lot of candidates to consider. The largest snakes listed here were chosen because of ...