02/04/2014 Newsround

It's Nel here with the latest on Newsround. First up, are politicians

behaving childishly? The Prime Minister David Cameron and the

Leader of the Opposition Ed Miliband have been insulting each other in

Parliament today. First, Ed Miliband called David Cameron a dunce - which

means stupid. It is a maths, not so much there will of Wall Street, more

they dunce of Downing Street. Then the Prime Minister called the leader

of the opposition a Muppet! A lecture from anyone in the country

but not from the two Muppets who advised the last Chancellor. You've

been telling us whether you think it's childish for politicians to

insult each other, or whether it's all part of the debate. And most of

you don't like the name calling. AB-raan in County Tyrone, says it's

not acceptable - while Trinity in Swindon says it's childish - they're

adults and should be better role models for kids. So how does this

sort of thing affect the image of Parliament? Every week the Prime

Minister comes here to Parliament to answer questions. Often it can be

really rowdy and noisy. Some people say that politicians should grow

up. But others say it is fine and it is important for our leaders to be

insulted. The reference to the Muppets has happened before. We're

back in the 1970s, the then Prime Minister was compared to Kermit the

frog. Next - an exciting discovery in

Saudi Arabia suggests that the scorching hot deserts there used to

be covered in lush grassy land, where large animals roamed. A team

of scientists has dug up a huge tusk that's 300,000 years old - recent

enough for humans to have been walking the Earth at the time.

Here's the BBC's Frank Gardner to explain more. When you think of the

Arabian desert you think of the Sun, the heat and dust. It didn't

used to be like that. A team from Oxford and Saudi Arabia scientists

found a massive elephant task from 300,000 years ago. -- tusk. Much of

Arabia then was covered in jungle and there were herds of wild animals

roaming around there long before it turned into a desert. This is

changing the way everyone is thinking of climate change. It turns

out it wasn't always desert and it used to be different. Early man had

stone tools and were living alongside these animals.

That's all from me, Newsround's back in the morning.