![HINDU NOTES-APRIL 22 and 23 2018 [UPSC IAS Current affairs]](https://i0.wp.com/iastoday.in/wp-content/uploads/2018/04/Stone-age-tools.jpg?resize=660%2C340&ssl=1)
HINDU NOTES-APRIL 22 and 23 2018 [UPSC IAS Current affairs]
Hindu Notes from General Studies-01 Editorials are covered separately. HINDU NOTES are available free date wise| CLICK HERE Evidence of Stone Age surgery discovered in skull of cow News A hole in the skull of a Stone Age cow was likely made by humans about 5,000 years ago, probably by a primitive veterinarian or trainee surgeon, scientists said. Beyond News The hole appears to have been painstakingly carved into the animal’s head, but whether it was an operation to save the cow or practice for surgery on humans, was not clear, a duo of anthropologists reported. Either way, the puncture does seem to represent the earliest known example of veterinary “trepanation” the boring of a hole into the skull, they said. There are many Neolithic (human) skulls in Europe which bear…