Oregon Zoo's baby elephant to make debut appearance on 21 February - 60 Minutes reports on elephants in Thailand - Two elephants killed after collision with fuel train in Sri Lanka - Wrinkles reveal whether elephants are left- or right-trunked, study finds - Rare twin elephants take first steps in Myanmar - Two elephants at Ohio zoo will welcome calves by the same father - 2 elephants at Ohio zoo will welcome calves by the same father - Elephant calf born at a California zoo - with another on the way - Banksy adds to animal artwork collection in London with new elephant design - Three elephants spotted near Hosur