And these existed for tens of millions of years.

How many tens of thousands of years does it go back?

How many tens of thousands of years does it go back?

They've evolved over tens of millions of years to take advantage of this.

That was in the interests of the species tens of thousands of years ago.

And the first step took tens of thousands of years stone tools, fire, the wheel kept accelerating.

In fact, the lore for many years has been, The ice formed many tens of millions of years ago, and it's been there ever since.

And as you go across there you will see that we've got a few tens of years, and perhaps 100 years of fossil fuels left.

Tens of thousands of people from both sides have been able to meet on neutral ground after years of separation.

For years these tens of millions suffered, endured, accepted hardships and sacrificed, and now they ask for their reward.

Small changes in Earth's orbit that occur over tens to hundreds of thousands of years alter the distribution of sunlight on Earth.

Catastrophic events capable of jeopardizing the survival of living species have a rate of recurrence of tens to hundreds of millions of years.

Objects of intermediate size can cause significant damage when they hit the Earth at random intervals of tens, hundreds or thousands of years.

We are tens of millions.

Pair of 10s. Tens bet.

Tens of thousands of active volcanoes.

Remove the tens

And two tens.

Tens? Hundreds? Thousands?

There are tens of thousands of these.

There are tens of thousands of these.

It's tens of thousands of pairs of shoes.

I have invested tens of millions of dollars.

And to begin to answer such questions, my research group since over 25 years now works on methods to extract DNA from remains of Neanderthals and extinct animals that are tens of thousands of years old.

And as you go across there you see a few tens of years of oil the blue line, by the way, is the lowest estimate of existing resources.

We find tens of thousands, even hundreds of thousands.

Oh, these incursions, these two wars, the 10 years of sanctions, the eight years of occupation, the insurgency that's been unleashed on your people, the tens of thousands, the hundreds of thousands of civilian deaths, all because of oil.

Liberia had endured anarchy and violence for over 15 years as a result of a civil war that had claimed the lives of tens of thousands of innocent civilians.

I was coming back from a big food distribution in a mosque where tens and tens of people were squatting in terrible conditions.

And we were tens of thousands who said no.

Over tens and hundreds of thousands of years, we evolved to find certain things stimulating, and as very intelligent, civilized beings, we're enormously stimulated by problem solving and learning.

It has created thousands, if not tens of thousands of jobs.

Tens of millions of people gave their lives for that victory.

And the land, to depths of tens of meters, is also warming.

The problem is they're just too expensive, tens of thousands of dollars.

With queens and it's OK queens and tens.

And now we focus on the tens place.

Running along this entire 42,000 miles are tens of thousands of active volcanoes.

Then, tens of thousands of people were trained in terrorism from all sides.

There are tens of thousands of miles of dewatered streams in the United States.

In fact, genetic profiling tells that it may be tens of thousands of years old, which means that this cancer may have first arisen from the cells of a wolf that lived alongside the Neanderthals.

We have about a hundred, 120,000 others that don't appear to function every day, but represent this archival history of how we used to work as a species going back tens of thousands of years.

So his thought was that flooding in the north of Africa actually brought those coniferous trees down tens of thousands of years ago, and what resulted was this remarkable adaptation to this unique desert environment.

And what marine mammals have evolved over the last tens of millions of years is ways to depend on sound to both explore their world and also to stay in touch with one another.

The plague has spread along the southern coast. Tens of thousands are dying.