The Sand Lizard (Lacerta agilis) is considerably larger than the common lizard, as it sometimes measures a foot in length. It frequents sandy heaths, and in the sand its eggs, fourteen or fifteen in number, are deposited. The eggs are hatched by the heat of the sun, and the young immediately lead an independent life. During the winter this, also the common lizard, hybernates in a burrow and does not again make its appearance until the spring. It feeds upon insects.