A new study has found that male-to-male headbutting and canine display first appeared some 270 million years ago. Read the full article by here: Articles relating to Places | johannesburg Submit and get free press releases here: MyPR Free Press Release. Click HERE to submit your Johannesburg news. MyJHB Read more on MyJHB. Join the fun: Add Your event | Submit a Press … [Read more...] about Wits study uncovers pre-dinosaur fight club