La vie animale dans la mer et sur la terre . ble dans le serpent, nous ne sommes pas mindtheir le regard sur nous. En fait, il est très amusant à togaze en retour et voir à quelle vitesse ils dart outtheir sveltes, langue fourchue pour attraper les insectes whichform leur chef de l'alimentation. 3. Queues de lézards sont très fragiles.-Un aboutlizards chose étrange est que leurs queues sont si fragiles, cassant parfois très inattendue. Tel étant le cas, il n'y a pas de sécurité en tenant un lézard par la queue, pour le cunninglittle créature peut courir et laisser vous et lesvis vous tenez. Ce n'est pas une perte grave pour la

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Animal life in the sea and on the land . ble in the snake, we do not mindtheir gazing at us. In fact, it is quite entertaining togaze at them in return and see how rapidly they dart outtheir slender, forked tongues to catch the insects whichform their chief food. 3. Lizards Tails are very Brittle.—One odd thing aboutlizards is that their tails are so brittle, snapping off some-times very unexpectedly. Such being the case, there isno security in holding a lizard by its tail, for the cunninglittle creature may run off and leave both you and thetail you are holding. This is no serious loss to the liz-ard, however, for a new tail soon grows in its place. LIZARDS. 231 4. Places frequented by Lizards.—Some kinds of lizardslove to frequent sandy banks where they may bask inthe sunshine, while others conceal themselves in dampplaces under stones and rotten logs. Fortunately forthe shy and timid lizards, their metallic colors often re-semble the vegetation or the soil on which they live, andthey can thus easily keep out of sight.. ? »>/ ¥A:: -V, V Fig. 150.—Lizard. 5. Advantages gained by Mimicry.—With regard to thissimilarity of coloring, or mimicry, so often adopted byanimals, it is important we should understand that it isa protection which these animals have gained or culti-vated for themselves — unconsciously, of course, and en-tirely without effort on their part, but as a natural resultof the fact that animals which are so protected stand abetter chance for life. Those animals of any kind which 232 ANIMAL LIFE IN THE SEA AND ON THE LAND. are inconspicuous among their ordinary surroundings arethe ones most likely to escape their enemies, and at thesame time they are the ones to grow strong and healthyfrom having plenty to eat, since it is easier for them topursue their prey without being seen. This advantageonce gained is held on to, and, having proved useful tothe parents, is handed down to their offspring, thus in-creasing little by little, and producing

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• bookcentury1800
• bookdecade1880
• booksubjectzoology
• bookyear1887