24/08/2011 Newsround

Hello, a big Wednesday welcome. This is news round. Not to be

missed this afternoon. The millions of animals and plants that still

haven't been discovered. And two daredevil sisters give

Hayley a taste of extreme sailing. First, the latest on the fast

moving situation in Libya. Its leader Colonel Gaddafi is still in

hiding tonight. That is despite thousands of people storming into

his headquarters in Tripoli. Some of the supporters are still there.

They have been fighting all day. It looks like it is almost over for

him, but he's as the fight will go Just 24 hours ago this was the

luxury home of the Libyan Leader Colonel Gadaffi. But look at it now

- full of people who want him out. After six months of fighting, they

stormed his compound, took it over and spent the night celebrating.

This is Colonel Gadaffi ten years ago, in front of a statue he had

built of a fist crushing an American plane. Here's the scene

now - people destroying anything that reminds the man who's ruled

the country for decades. -- reminds them of the man. BBC reporter Wyre

Davies was there this morning. are now well inside his compound.

The outer rim has been taken by the rebel fighters. The inner compound

is still controlled by militia -- loyal to Colonel Gaddafi. There is

a huge gun fight going on, these rebel fighters are going into

trying mop up the resistance. Colonel Gadaffi's 42 years in power

had been brutal. He used to lock up and sometimes kill people who

disagreed with him. Trying to catch him is the next challenge. There's

a huge network of underground tunnels leading out from the

compound, which are thought to stretch all around the city. He may

have escaped through one of these. And Colonel Gadaffi still reckons

he's in charge. In this broadcast last night, he says he's going to

return and calls on everyone in Libya to help him regain power. But

leaders of the anti-Gaddafi movement have started setting up a

new government to take full control of the country. In the capital's

main square, the celebrations continue. But everyone knows

there's a lot to do to get the country back up and running.

Some breaking news - all the journalists - including some BBC

reporters - being held at a hotel in Tripoli have now been freed. And

we've got some special guides on the Newsround website if you want

to know more about the situation in Libya. It is going to be a nail-

biting night for Arsenal. They have lost Samir Nasri and Fabregas, but

they will take on the Italian side Udinese in a crucial Champions'

League clash. In the first leg, they won 1-0. As

long as they don't lose tonight, the Gunners will qualify for the

group stages of the competition. How many species of plants and

animals do you think we have in this country?

That is impossible. 8.7 million, scientists reckon. But so far, we

have only found 1 million. From deep in our oceans to high up

in the sky, from the coldest spot of the Earth to some of the hottest

places, life is everywhere. And it is not only animals that make up

the living species on Earth, as plants, fungi and Marco -- micro-

organisms make-up part of the hour world. Scientists had only

discovered 1.2 million species and will now, mostly from the land,

rather than the oceans. So much more remains undiscovered. Experts

reckon there are a total of 8.7 million species, which means we

have only found around 15% so far. So how did the people who did the

research managed to workout this big number? Until now, we have had

a broad estimate, anywhere from 3 million to 100 million. What we

have done it is refined it estimate. So now, we estimate around 8.7

million. Scientists say there are many benefits to discovering the

animals and plants. They say some could hold the key to finding new

medicines to treat illnesses. Whatever is still out there to find,

it's going to take a long time to track them all - experts reckon it

would take more than 1,000 years! But that length of time worries

some people, who fear many species will become extinct before they get

to be identified. Hurricane Irene is already

battering the Caribbean and is now swirling it's way towards the USA.

Heavy rain and strong winds have forced many people to leave their

homes. She has flown in a plane with a 12-

year-old pilot and even fed sharks. Hayley has taken your mission to

find the greatest summer holiday at very seriously.

Next, extreme sailing! Put together some of the world's

fast its sailing boats, a team of young sailors and the UK's to

appease the waters. You have yourself two of the contenders in

the National optimist sailing team. The girls have been spending their

summer holidays sailing around the coast of the UK, but today, they

are taking things to a whole other level. I have gone to be done in

the alt -- Isle of Wight for the world extreme sailing competition.

How are you? Come-on in. Nice to meet you. That is stylish arrival,

I like it. What have you been doing this summer? We have been sailing

around the country. What is it we are going to do today? We're going

to sail in this, it is really be, really fast and really scary.

you tell me! It is just over an hour before despite competes in the

World Series, so we'd better get on and get it ready. -- before this

These girls are not old enough to sail on their own yet, this boat

reaches a whopping 73 kilometres an hour, and they need a lot of

strength to steal it. So you have just sailed one of the world's most

extreme boats, how do you feel? was a roller-coaster! How was it

Last up, check out this special story. It is about chickens. This

hen house at four ducklings. She sat on the duck eggs for a month,