You're the first friend I think any of us have found here on Earth.

Many examples of these regulatory systems have been found on Earth.

What if he found himself on Earth when it was all a bunch of hot lava rock?

Evolution is now used to explain the great variations of life found on Earth.

And if the absentee were not to be found on Earth, what of it?

"These other items looked similar to those found on Earth."

So far as anyone knew, concs were found only on Earth.

It's hard to find volunteers for social studies on Earth.

It simply mean any where organisms are found on Earth.

But there was no life to be found on Earth.