05/02/2016 Newsround

I'm Leah, and you're live with Newsround,

Coming up: Saving the monkey puzzle tree - by growing

And the robot that's the best golfer in the world.

It's just six months to go until the start of the Olympic Games

The athletes are in training and the venues are almost ready.

But there are some problems still to deal with.

The BBC's Wyre Davies is in Rio for Newsround.

From a sporting perspective, everything looks pretty good.

The four distinct Olympic venues around

the city are coming on fine, and most of the stadium are nearly

finished, and also the test events they have been holding

here in the city are going pretty well.

There is some cause for concern, particularly

water quality here in the bay around the city, and also transport links

between Rio and the main Olympic park.

There's a new tube line which will only be finished a matter

Now, two Russian cosmonauts have done a space-walk

from the International Space Station.

The pair are living with British Astronaut Tim Peake

They went outside to set up some experiments and bring some tests

There's a devastating virus that's destroying millions of colonies

It can stop their wings growing properly, which stops them flying.

British scientists says it's not caused by a problem in nature,

but by the trade in moving honeybee populations around the world

to areas where there aren't enough to pollinate the food we eat.

Next - how do you protect trees that are in danger of disappearing?

You collect sees from other countries and create the biggest

The Monkey Puzzle Tree is one of those under threat.

These are the unmistakable trickles of the monkey puzzle tree. They are

found in many gardens, but in the wild they are in danger of dying

out. So conservationists are working faster make sure they survive. Back

in 2009 team went to Chile and South America to collect seeds from the

last remaining cluster of monkey puzzle trees. Some went in a mass

approach, others were planted. Six years on, they look like this. As

soon as you sow them, you will see a written a couple of weeks, and

within six months or so you'll get a lovely shoot coming up from the top,

but it takes them six years to get to the stage in their life. But

these have done amazingly well. It could be a prehistoric landscape,

the trees date back 200 million years to the dinosaur times. These

conifers can grow to over 130 feet in height. Along with the monkey

puzzle tree seeds, thousands of others were also collected in Chile.

They were brought back to the faults of the millennium seed bank, and was

sorted, put into jars and put into huge fridges for safekeeping. There

are seeds from 36,000 other species of plants from all over the world.

In the next few years it is hoped a forest landscape like that in Chile

can be rated here in Sussex. These trees in Chile are under threat for

all sorts of different reasons. Fire, clearance, so collecting the

seed and propagating it and having the scientific collection of monkey

puzzles will help to detect the future of these trees for many

generations to come. Luckily, they are tough, strong trees which can

tolerate snow, rain and wind, which are all very common in the UK.

In tennis, 16-year-old Katie Swan and Heather Watson have both

won their games in the Fed Cup tennis opener against South Africa.

Jocelyn Rae and Anna Smith won in the doubles.

This very rare Ferrari car is expected to fetch up to over

It's been described as a "fabulous star" which had been driven by some

of the best drivers in racing history since it was made in 1957.

And finally in golf, how easy is it to hit a hole in one?

Well, if you're a robot, it's pretty easy.

This is Eldrick the robot, who managed to make the golfing

The robot is named after a famous golfer called Tiger Woods.

That's all from me, Newsround's back right here in about half an hour.