From Dutch news agency Novum:
The numbers of frogs and toads in The Netherlands are on the rise, though worldwide there is a decline.
The numbers are from the Centraal Bureau voor de Statistiek (CBS) between 1997 and 2004.
Ever since the 1950s, there was a decline in The Netherlands of the numbers of frogs and toads.
According to the people doing the research, this growth is due to improvement in water quality and digging of new ponds.
They say the number of tree frogs is rising fastest.
Since 1997, there are four times as many European tree frogs.
The yellow bellied toad is still threatened, though numbers are on the rise, according to the CBS.
Numbers of common toads rose with 3.5 percent a year.
Fossil frogs, Rana pueyoi, from Spain: here.
Toads in the USA: here.