0:00:10 > 0:00:11Hi, everyone.
0:00:11 > 0:00:14Leah here with your Friday Newsround.
0:00:14 > 0:00:17First, Hillary Clinton has officially agreed to run for US
0:00:17 > 0:00:19president for her political party, the Democrats.
0:00:19 > 0:00:22She has made history by becoming the first woman ever to be nominated
0:00:22 > 0:00:25for the White House job by a major party.
0:00:25 > 0:00:27Hillary has promised to unite the country and improve
0:00:27 > 0:00:31the lives of all Americans, if she beats rival Donald Trump in
0:00:31 > 0:00:34the race to win November's election.
0:00:34 > 0:00:36The person the American people choose, will make important
0:00:36 > 0:00:39decisions about how the US is run and how it works
0:00:39 > 0:00:41with other countries.
0:00:41 > 0:00:46I accept your nomination for President of the United States.
0:00:46 > 0:00:48CHEERING
0:00:48 > 0:00:52Yes, the world is watching what we do.
0:00:52 > 0:00:56Yes, America's destiny is ours to choose.
0:00:56 > 0:01:02So let's be stronger together, my fellow Americans.
0:01:02 > 0:01:04And you can find out more about Hillary Clinton
0:01:04 > 0:01:09and the American Presidential election online.
0:01:09 > 0:01:11We are exactly one week away from the official start
0:01:11 > 0:01:13of the Rio Olympic Games in Brazil.
0:01:13 > 0:01:16The event will see over 10,000 athletes from around 200 nations
0:01:16 > 0:01:21come together to compete in 28 sports, including athletics,
0:01:21 > 0:01:23swimming and even wrestling.
0:01:23 > 0:01:26Team GB will be hoping to win loads of medals.
0:01:26 > 0:01:29The BBC's Olympic reporter Nick Hope has given us insider info
0:01:29 > 0:01:32on which British stars to watch out for.
0:01:32 > 0:01:34Hi, Newsround.
0:01:34 > 0:01:36Yes, we're just days away from the Rio Olympics,
0:01:36 > 0:01:39an event so big it's called the greatest show on Earth.
0:01:39 > 0:01:41Many of the athletes have already travelled to Brazil
0:01:41 > 0:01:44to begin their final preparations so here are my top five
0:01:44 > 0:01:49ones to watch in Rio.
0:01:51 > 0:01:54Teenager Amber Hill started shooting when she was just ten.
0:01:54 > 0:01:57She has her own special pink cartridges and hopes those
0:01:57 > 0:02:00will help her become the first British woman to win an Olympic
0:02:00 > 0:02:03shooting gold medal.
0:02:03 > 0:02:05Adam Peaty is a swimming sensation.
0:02:05 > 0:02:08He's won Commonwealth, European and World gold medals over
0:02:08 > 0:02:11the last two years and is looking to complete his set
0:02:11 > 0:02:15with an Olympic title.
0:02:15 > 0:02:17Britain has some of the best taekwondo fighters on the planet
0:02:17 > 0:02:19and Bianca Walkden is a major star.
0:02:19 > 0:02:26She won World gold in 2015 and wants more success in Rio.
0:02:26 > 0:02:28Ellie Downie only stepped up to senior gymnastic competitions
0:02:28 > 0:02:32last year, but has already won several major titles and will be
0:02:32 > 0:02:38bidding for both individual and team medals.
0:02:38 > 0:02:40Finally, Katarina Johnson-Thompson, the heptathlete, competes
0:02:40 > 0:02:43in a incredible seven events and is amongst the favourites
0:02:43 > 0:02:47to secure gold, but she'll be up against her teammate,
0:02:47 > 0:02:51defending champion Jess Ennis-Hill.
0:02:51 > 0:02:55So all five athletes will be hoping to win big for Team GB and you'll be
0:02:55 > 0:02:58able to catch the best of the action on the Newsround website
0:02:58 > 0:03:01throughout the Olympics.
0:03:01 > 0:03:03Now one of the largest ever dinosaur footprints has been found
0:03:03 > 0:03:05in Bolivia in South America.
0:03:05 > 0:03:08It's more than a metre across and is thought to have
0:03:08 > 0:03:13belonged to a type of dinosaur called an Abelisaurus.
0:03:13 > 0:03:16Amidst the dry and dusty hills of central Bolivia,
0:03:16 > 0:03:19a remarkable discovery.
0:03:19 > 0:03:24Hidden beneath rocks and boulders, a footprint preserved in time.
0:03:24 > 0:03:27A footprint that's thought to be tens of millions of years
0:03:27 > 0:03:33old and much larger than expected.
0:03:33 > 0:03:35TRANSLATION: The abelisaurus were the great carnivores of the end
0:03:35 > 0:03:39of the Cretaceous period in the southern hemisphere.
0:03:39 > 0:03:42Footprints this large have never been reported.
0:03:42 > 0:03:45Their normal size was around nine metres, large animals,
0:03:45 > 0:03:48however the footprints we found were for an animal that easily
0:03:48 > 0:03:51exceeds ten or even 12 metres.
0:03:51 > 0:03:55The Abelisaurus was similar to the Tyrannosaurus Rex.
0:03:55 > 0:03:59Both part of the Theropod group of dinosaurs.
0:03:59 > 0:04:03Like the T-Rex it's believed to have lived in the late Cretaceous period,
0:04:03 > 0:04:07somewhere around 60 to 80 million years ago.
0:04:07 > 0:04:11Whereas its more famous cousin roamed around north America,
0:04:11 > 0:04:14the abelisaurus could be found in south America.
0:04:14 > 0:04:17And it was unlikely to be lonely.
0:04:17 > 0:04:20In this area of Bolivia thousands of footprints have been discovered
0:04:20 > 0:04:25and children are getting the chance to see replica dinosaurs.
0:04:25 > 0:04:3080 million years ago they could have seen the real thing.
0:04:30 > 0:04:34And last up, this might not be millions of years old but it's
0:04:34 > 0:04:35still pretty amazing.
0:04:35 > 0:04:37Lava from the Kilauea volcano in Hawaii started erupting two
0:04:37 > 0:04:41months ago and has been moving on a six-mile journey
0:04:41 > 0:04:43towards the coast since.
0:04:43 > 0:04:46It's now reached the Pacific Ocean and this stunning video
0:04:46 > 0:04:49shows the hot liquid rock falling off the cliffs.
0:04:49 > 0:04:53Officials there say that the lava isn't putting any towns at risk.
0:04:53 > 0:04:54That's all from me.
0:04:54 > 0:04:57Newsround's back right here in about half an hour.
0:04:57 > 0:04:58Bye!