Post navigation 500 million year old fossil was discovered in Nevada which possibly belongs to an unknown sea worm. It has segmented, wiggling body and the length of two to four feet. This fossil is an example of a rare species which has given a chance to the scientists to explore and study a new species. Ukraine’s Special Forces, Alpha, have launched a counteroffensive against Russia-backed separatists. This effort is being seen as a significant shift in the six year conflict in the region as the Ukrainian forces take an offensive stance rather than their usual defensive approach. The rebels have responded to the counteroffensive with an attack that has left at least 8 Ukrainian soldiers dead.