They promise to give 34 new projects £1.9 million this year.
That means they will give a total of £4 million to different conservation schemes in 2003.
Some of them are doing work to help save animals like the black rhino, marine turtles and saiga antelopes.
The antelopes - which live in central Asian areas - are in the top 10 list of species in danger of being wiped out.
Lots of the money is to be given to projects through what's called the Darwin Initiative.
Often countries which have the most endangered species can't afford to save them.
So the Initiative was set up after the 1992 Rio Earth Summit. It helps countries who are not so well-off pay for conservation projects.
It also means they can borrow experts from other countries to advise them.