And that's because the urchins eat kelp.

But when the fish came back and began predating and controlling the urchin population, low and behold, kelp forests emerged in shallow water.

And within a few months after that sea urchin dying, the seaweed started to grow.

For example, these fish predate on sea urchins, and when the fish were all gone, all anyone ever saw underwater was just acres and acres of sea urchins.

After a few years, between five and seven years, fish come back, they eat the urchins, and then the algae grow again.

Alexander asks how he dares to disturb the seas.

So when the fish control the urchin population, the ocean was restored to its natural equilibrium.

You know the uni is the most challenging, so number ten is challenging.

This is my baseline This is the Mediterranean coast with no fish, bare rock and lots of sea urchins that like to eat the algae.

People hate number ten like they hate uni, actually.

Braving to try, daring to make breakthrough, self determination and the enterprising spirit also originate from the fact that Shanghai has always taken institutional reform as the key to developing this great article.

And the reason was because of overfishing, and the fact that a last common grazer, a sea urchin, died.

If you take a sea urchin larva from 8.1, put it in a pH of 7.7 not a huge change it becomes deformed and dies.

My delegation wishes to commend the affected countries for the bold efforts that their respective authorities have displayed in addressing the aftermath of the earthquake and tsunami.

He is afraid of his own shadow.

You're just a coward.

Looks absolutely audacious.

My cholesterol is high.

So we take the bold step of putting the cholesterol information on the same page, which is the way the doctor is going to evaluate it.

So that's kind of a bold statement.

So this is gallbladder surgery.

You're all cowards.

You're all chickenshits.

You were also too brave!

Bold decisions must be taken.

Now the CRP test is often done following a cholesterol test, or in conjunction with a cholesterol test.

So this is a very bold statement.

It's a wild concept.

I am amazed at your audacity.

This is so blatant, so extreme.

And they clearly cheated in a very, very serious way.

And we architects are cowards.

The Forum ended with outstanding recommendations calling for all stakeholders to Think Bold, Do Able with Bold Action in order to have Goals Set Goals Met.

I'm thinking, This is my kid. How dare she?

At the end of the ride we can dump our bikes on the quay for our guides Ivan and Ivana to stow, and jump off the back of the boat into clear blue water without having to mix it with sea urchins, sharp rocks and other people on the hanky sized strips of pebbles that Croatians call a beach.

Within 10 years of the first gallbladder surgeries being done laparoscopically, a majority of gallbladder surgeries were being done laparoscopically truly a pretty big revolution.

To tell you the truth, I am scared of heights. You are a coward!

There the alternative just boggles the imagination.

Tom was too afraid to do anything.

We welcome those concrete and bold proposals.

Because they could do whatever they wanted to to this building.

OK. So, the first one I was very timid, and I'll begin.

Like with the water, instead of talking about it, we're going to sail a million liters of harbor water from Copenhagen to Shanghai, so the Chinese who have the courage can actually dive in and feel how clean it is.

Let us therefore not be faint hearted, but rather boldly accelerate and complete the process of reform, so that the principles and purposes for which the United Nations stands may be fully implemented.

Big idea, but I think highly defensible.