0:00:03 > 0:00:04It's Wednesday, Ayshah here with everything that's
0:00:04 > 0:00:05going on this morning.
0:00:05 > 0:00:08Coming up:
0:00:08 > 0:00:11We meet the 16-year-old weightlifter hoping to make it to Rio, and...
0:00:11 > 0:00:14Scientists get up, close and personal with sneezing.
0:00:24 > 0:00:27But first, scientists say over half of the world's primates are
0:00:27 > 0:00:29on the brink of extinction.
0:00:29 > 0:00:31Species of apes, lemurs and monkeys are some
0:00:31 > 0:00:33of the creatures under threat.
0:00:33 > 0:00:35Experts say destruction of their homes, the hunting of the
0:00:35 > 0:00:38animals for food and the illegal wildlife trade are responsible
0:00:38 > 0:00:44for the drop in monkey numbers.
0:00:44 > 0:00:47With less than year to go until the Olympics games,
0:00:47 > 0:00:50many sports are close to choosing their teams to take to Rio.
0:00:50 > 0:00:53And one person hoping to make it is 16-year-old Rebekah Tiler.
0:00:53 > 0:00:56Today she will compete as the youngest member of the GB team
0:00:56 > 0:01:00in the Senior World Weightlifting Championships in the USA.
0:01:00 > 0:01:03Rebekah started the sport when she was just 12 years old,
0:01:03 > 0:01:06and and we sent BBC Olympic sport reporter Nick Hope to meet her.
0:01:12 > 0:01:15Rebekah Tiler has an amazing talent.
0:01:15 > 0:01:19She's just 16, but can lift over 120 kilograms above her head.
0:01:19 > 0:01:21That's twice her own body weight.
0:01:21 > 0:01:24I've been doing the sport for about four years now.
0:01:24 > 0:01:26I actually started off as a sprinter when I was 12.
0:01:26 > 0:01:29I went to the perform centre and I was lifting more than most
0:01:29 > 0:01:30of the guys.
0:01:30 > 0:01:32It's crazy.
0:01:32 > 0:01:34A month later, I started doing it.
0:01:34 > 0:01:35Everybody thinks it's a body-building sport.
0:01:35 > 0:01:38You know, you get big muscles and you are
0:01:38 > 0:01:42hairy and everything like men and stuff, but it's nothing like that.
0:01:42 > 0:01:46They are all just normal girls.
0:01:46 > 0:01:48Rebekah holds 30 British records, and her typical day involves
0:01:48 > 0:01:51training and studying for college - something she is pleased to see
0:01:51 > 0:01:54more girls trying themselves.
0:01:54 > 0:01:56I think there's a lot more girls getting involved
0:01:56 > 0:01:59in the sport now, which is really good, and that's what I wanted to do
0:01:59 > 0:02:03- inspire more kids and girls to get in, because it's a great sport.
0:02:03 > 0:02:06Houston in the USA is where Rebekah will make her debut at the
0:02:06 > 0:02:08World Championships as a senior weightlifter.
0:02:08 > 0:02:12And as an added bonus, she'll also be up against one of her idols -
0:02:12 > 0:02:15Commonwealth champion Zoe Smith.
0:02:15 > 0:02:19The first time I saw Zoe was at London 2012, and I was looking up
0:02:19 > 0:02:22to her thinking, I could be like her if I trained hard.
0:02:22 > 0:02:24So I am now, which is cool.
0:02:24 > 0:02:26And you are going to be competing against her.
0:02:26 > 0:02:29Which is really good, yes, that's going to be a good showdown.
0:02:29 > 0:02:32She's a fantastic athlete, I can't knock her at all.
0:02:32 > 0:02:35She has obviously been making huge gains recently, so it will be
0:02:35 > 0:02:37a really, really good competition.
0:02:37 > 0:02:40To be there and experience it is just going to be so cool.
0:02:40 > 0:02:42Just really excited, can't wait to get on the platform
0:02:42 > 0:02:50and show them how I lift.
0:02:50 > 0:02:52Now to Australia, where they've started using drones with cameras
0:02:52 > 0:02:53to track sharks on beaches.
0:02:53 > 0:02:57The drones will send live pictures to a control centre
0:02:57 > 0:02:59so the animals can be tracked.
0:02:59 > 0:03:01They're being used with barriers in the sea, and helicopters,
0:03:01 > 0:03:06after a number of attacks over the last year.
0:03:06 > 0:03:09Next, a new rocket designed to carry tourists into space has
0:03:09 > 0:03:11launched successfully in America.
0:03:11 > 0:03:14The New Shepard rocket took off from west Texas on Monday with no-one
0:03:14 > 0:03:18aboard and landed safely again.
0:03:18 > 0:03:21It's been made to carry up to six people into earth's upper
0:03:21 > 0:03:24atmosphere where they will be able to experience weightlessness.
0:03:24 > 0:03:27The rocket is designed to take off and land standing up,
0:03:27 > 0:03:34so it can used more than once.
0:03:34 > 0:03:37Next to the City of London, where scientists have made
0:03:37 > 0:03:38a fascinating discovery.
0:03:38 > 0:03:39By looking at ancient bones, researchers have been able to find
0:03:39 > 0:03:42out what the very first Londonders looked like.
0:03:42 > 0:03:45Here's Ricky.
0:03:45 > 0:03:47London.
0:03:47 > 0:03:50One of the most diverse cities in the world.
0:03:50 > 0:03:52There are millions of people from lots of different backgrounds
0:03:52 > 0:03:54living here.
0:03:54 > 0:03:59And it turns out that not much has changed over the past 2,000 years.
0:03:59 > 0:04:04This is a skeleton of a 14-year-old girl who lived in London thousands
0:04:04 > 0:04:07of years ago under Roman rule.
0:04:07 > 0:04:09Scientists extracted DNA from her teeth and bones to work out
0:04:09 > 0:04:15where she was from.
0:04:15 > 0:04:17Amazingly, they discovered that she grew up
0:04:17 > 0:04:22in North Africa, but her mother was from southern or eastern Europe.
0:04:22 > 0:04:27The DNA test also revealed the colour of her eyes - they were blue.
0:04:27 > 0:04:30Her family travelled across the globe to be in London.
0:04:30 > 0:04:32Even though this was 2,000 years ago,
0:04:32 > 0:04:34the world is still a large place.
0:04:34 > 0:04:37People are still able to move thousands of miles, and we think she
0:04:37 > 0:04:41may have been part of a military community, that her father - or
0:04:41 > 0:04:44indeed even her husband, even though she was quite young - she could have
0:04:44 > 0:04:47been moving with the Army.
0:04:47 > 0:04:52Researchers plan to analyse more than 20,000 human remains
0:04:52 > 0:04:55of ancient Londoners.
0:04:55 > 0:04:57The bones have been kept inside the Museum of London.
0:04:57 > 0:05:00This is what the capital looked like 2,000 years ago.
0:05:00 > 0:05:03Scientists say, from its very beginnings,
0:05:03 > 0:05:09it was a place full of people with different cultures and backgrounds.
0:05:09 > 0:05:12Researchers say they hope to learn a lot more from these skeletons,
0:05:12 > 0:05:16to find out more about the history of this capital city.
0:05:19 > 0:05:21Last up, if you're eating your breakfast, look away -
0:05:21 > 0:05:25because we're about to show you a giant sneeze in slow motion.
0:05:25 > 0:05:28Scientists in the US have used high-speed video
0:05:28 > 0:05:32to discover exactly how snot breaks into drops after it's ejected
0:05:32 > 0:05:35from our mouths during a sneeze.
0:05:35 > 0:05:38They discovered that mucus and saliva moves in many different
0:05:38 > 0:05:40ways before becoming droplets.
0:05:40 > 0:05:42It's hoped the research will help experts learn more
0:05:42 > 0:05:47about how sneezing spreads germs.
0:05:47 > 0:05:53That's all from the morning team, Newsround's back at 4.20 with Ricky.