Snakes are elongated, limbless reptiles of the suborder Serpentes (/sɜːrˈpɛntiːz/).[2] Like all other squamates, snakes are ectothermic, amniote vertebrates covered in overlapping scales. Many species of snakes have skulls with several more joints than their lizard ancestors, enabling them to swallow prey much larger than their heads (cranial kinesis). To accommodate their narrow bodies, snakes' paired organs (such as kidneys) appear one in front of the other instead of side by side, and most have only one functional lung. Some species retain a pelvic girdle with a pair of vestigial claws on either side of the cloaca. Lizards have independently evolved elongate bodies without limbs or with greatly reduced limbs at least twenty-five times via convergent evolution, leading to many lineages of legless lizards.[3] These resemble snakes, but several common groups of legless lizards have eyelids and external ears, which snakes lack, although this rule is not universal (see Amphisbaenia, Dibamidae, and Pygopodidae). Living snakes are found on every continent except Antarctica, and on most smaller land masses; exceptions include some large islands, such as Ireland, Iceland, Greenland, and the islands of New Zealand, as well as many small islands of the Atlantic and central Pacific oceans.[4] Additionally, sea snakes are widespread throughout the Indian and Pacific oceans. Around thirty families are currently recognized, comprising about 520 genera and about 3,900 species.[5] They range in size from the tiny, 10.4 cm-long (4.1 in) Barbados threadsnake[6] to the reticulated python of 6.95 meters (22.8 ft) in length.[7] The fossil species Titanoboa cerrejonensis was 12.8 meters (42 ft) long.[8] Snakes are thought to have evolved from either burrowing or aquatic lizards, perhaps during the Jurassic period, with the earliest known fossils dating to between 143 and 167 Ma ago.[9][10] The diversity of modern snakes appeared during the Paleocene epoch (c. 66 to 56 Ma ago, after the Cretaceous–Paleogene extinction event). The oldest preserved descriptions of snakes can be found in the Brooklyn Papyrus. Most species of snake are nonvenomous and those that have venom use it primarily to kill and subdue prey rather than for self-defense. Some possess venom that is potent enough to cause painful injury or death to humans. Nonvenomous snakes either swallow prey alive or kill by constriction.
La Historia del mayor heroe de la historia a cuatro patas. El Mundo es continuamente amenazado por criminales y terroristas, para ello, en 1980, la OTAN aprueba la creación de una serie de agencias antiterrorismo en todos los gobiernos de sus países, en 2009, debido a una tasa de corrupción, en España, aprueban el proyecto de adiestrar a un super soldado que fuera leal y fiel a los suyos, de puro corazón y al que no se pudiera corromper, él es... El agente Max. Max, es un pastor alemán que vive en Madrid junto a su amada familia: su dueña, una detective llamada Ana, Carlitios, el sobrino de Ana, el gato Chester, el loro Pori, entre otros, mientras, Johnson, el padre de Ana, dirige una agencia de espionaje española contra terrorismo (la AISE), donde adiestra a Max para convertirlo en un supersoldado canino y convertirlo en el mejor espia del mundo, hasta le dan capacidad de hablar, Max y sus amigos se enfrentan a numerosos enemigos, en especial a la Orden Illuminati, una organizacion terrorista internacional nazi, dirigida por el malvado Dr Anguila, un perverso cientifico militar nazi que ansia dominar el mundo y fundar su dictadura.
