Today, Tony from the Vientiane International School in Laos asks the scientists about how long we - or our descendants - might live.

But those crickets with the most offspring were simply those that lived the longest, regardless of size.

We have to look towards the future, for the good of our grandchildren.

The earth is our home and we have the duty to take care of it for ourselves and for our later generations.

The measure of success, then, is whether or not we give future generations the same opportunities that we have had.