Five of the seven reptile species found in the Netherlands have declined over the past 12 years, according to new figures from national statistics office CBS and research foundation RAVON. Only the wall lizard has grown in number since 2014, while the slow worm has stayed stable. On average, reptile populations have fallen since 2014 and are now roughly back at their 1994 level. The viviparous, the common lizard, has fared worst, with numbers down almost 75% since 1994.