DNA evidence proves climate change killed off prehistoric megafauna http://theconversation.com/dna-evidence-proves-climate-change-killed-off-prehistoric-megafauna-45080 … via @ConversationUKpic.twitter.com/a8xAl90O0R
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more