deborah patta, cbs news, pirnda-- phinda game reserve south africa. >> a new report shows the devastating toll brush fires had on wildlife, scientists say more than 60,000 koalas were among the 140 million mammals affected by the flames. koalas were already an endangered species. the fires are being called one of the worst wildlife disasters in modern history. next on the cbs weekend news, the royal couple rides the rails to pay tribute to britan's covid heroes. >> two, one. kuz a landmark launch for spacex. it was the company's 100th success of its falcon 9 rocket. it is a resupply caringor mission to the international space station. look at that today prince william and wife kate gave a nod to history boarding the queen's royal train for a cross country tour. their three day trip honor front line workers, nursing home staff and teachers for their contributions during the pandemic. they'll travel 1200 miles across england, scotland and wales. when we return neerlt snow nor sleet nor a pandemic lockdown can stop this santa helper. >> duncan: finally tonight, do you believe in miracles? c