25/11/2015 Newsround

It's Wednesday, Ayshah here with everything that's

going on this morning.

Coming up:

We meet the 16-year-old weightlifter hoping to make it to Rio, and...

Scientists get up, close and personal with sneezing.

But first, scientists say over half of the world's primates are

on the brink of extinction.

Species of apes, lemurs and monkeys are some

of the creatures under threat.

Experts say destruction of their homes, the hunting of the

animals for food and the illegal wildlife trade are responsible

for the drop in monkey numbers.

With less than year to go until the Olympics games,

many sports are close to choosing their teams to take to Rio.

And one person hoping to make it is 16-year-old Rebekah Tiler.

Today she will compete as the youngest member of the GB team

in the Senior World Weightlifting Championships in the USA.

Rebekah started the sport when she was just 12 years old,

and and we sent BBC Olympic sport reporter Nick Hope to meet her.

Rebekah Tiler has an amazing talent.

She's just 16, but can lift over 120 kilograms above her head.

That's twice her own body weight.

I've been doing the sport for about four years now.

I actually started off as a sprinter when I was 12.

I went to the perform centre and I was lifting more than most

of the guys.

It's crazy.

A month later, I started doing it.

Everybody thinks it's a body-building sport.

You know, you get big muscles and you are

hairy and everything like men and stuff, but it's nothing like that.

They are all just normal girls.

Rebekah holds 30 British records, and her typical day involves

training and studying for college - something she is pleased to see

more girls trying themselves.

I think there's a lot more girls getting involved

in the sport now, which is really good, and that's what I wanted to do

- inspire more kids and girls to get in, because it's a great sport.

Houston in the USA is where Rebekah will make her debut at the

World Championships as a senior weightlifter.

And as an added bonus, she'll also be up against one of her idols -

Commonwealth champion Zoe Smith.

The first time I saw Zoe was at London 2012, and I was looking up

to her thinking, I could be like her if I trained hard.

So I am now, which is cool.

And you are going to be competing against her.

Which is really good, yes, that's going to be a good showdown.

She's a fantastic athlete, I can't knock her at all.

She has obviously been making huge gains recently, so it will be

a really, really good competition.

To be there and experience it is just going to be so cool.

Just really excited, can't wait to get on the platform

and show them how I lift.

Now to Australia, where they've started using drones with cameras

to track sharks on beaches.

The drones will send live pictures to a control centre

so the animals can be tracked.

They're being used with barriers in the sea, and helicopters,

after a number of attacks over the last year.

Next, a new rocket designed to carry tourists into space has

launched successfully in America.

The New Shepard rocket took off from west Texas on Monday with no-one

aboard and landed safely again.

It's been made to carry up to six people into earth's upper

atmosphere where they will be able to experience weightlessness.

The rocket is designed to take off and land standing up,

so it can used more than once.

Next to the City of London, where scientists have made

a fascinating discovery.

By looking at ancient bones, researchers have been able to find

out what the very first Londonders looked like.

Here's Ricky.

London.

One of the most diverse cities in the world.

There are millions of people from lots of different backgrounds

living here.

And it turns out that not much has changed over the past 2,000 years.

This is a skeleton of a 14-year-old girl who lived in London thousands

of years ago under Roman rule.

Scientists extracted DNA from her teeth and bones to work out

where she was from.

Amazingly, they discovered that she grew up

in North Africa, but her mother was from southern or eastern Europe.

The DNA test also revealed the colour of her eyes - they were blue.

Her family travelled across the globe to be in London.

Even though this was 2,000 years ago,

the world is still a large place.

People are still able to move thousands of miles, and we think she

may have been part of a military community, that her father - or

indeed even her husband, even though she was quite young - she could have

been moving with the Army.

Researchers plan to analyse more than 20,000 human remains

of ancient Londoners.

The bones have been kept inside the Museum of London.

This is what the capital looked like 2,000 years ago.

Scientists say, from its very beginnings,

it was a place full of people with different cultures and backgrounds.

Researchers say they hope to learn a lot more from these skeletons,

to find out more about the history of this capital city.

Last up, if you're eating your breakfast, look away -

because we're about to show you a giant sneeze in slow motion.

Scientists in the US have used high-speed video

to discover exactly how snot breaks into drops after it's ejected

from our mouths during a sneeze.

They discovered that mucus and saliva moves in many different

ways before becoming droplets.

It's hoped the research will help experts learn more

about how sneezing spreads germs.

That's all from the morning team, Newsround's back at 4.20 with Ricky.