How long do snakes live, and are they viviparous or oviparous?
A snake is a reptile whose entire body is covered in scales and whose four limbs have degenerated. Snakes are ectothermic animals, with a body temperature lower than that of humans, and are also called cold-blooded animals. Some are venomous, but most are non-venomous. So exactly how long do snakes live? Are they viviparous or oviparous?
More than 3000 species of snakes have been discovered worldwide, of which more than 250 are distributed in China. All snakes are carnivores, but different snakes have different feeding habits. Some eat fish, some eat mice, some eat eggs, and some eat snails, earthworms, and some small mammals or birds, or even snakes.
How long do snakes live?
Different snakes have different lifespans, mainly related to species or living conditions. In general, small snakes live about 2 to 5 years, medium-sized snakes about 5 to 12 years, and large snakes 10 to 20 years, while pythons can live 30 to 40 years or even longer. However, in the wild, because their habitat is relatively unstable, food is sometimes scarce, and natural enemies and diseases take a serious toll, snakes do not live as long as they do under captive conditions, and many scientists have proved this through experiments.
Which snakes have the shortest lifespan?
Snakes that live underground have shorter lifespans, such as blind snakes and sunbeam snakes, which live only about 1 to 3 years.
Which live longer, venomous or non-venomous snakes?
Venomous snakes grow and develop more slowly than non-venomous snakes, so venomous snakes live longer than non-venomous snakes (except pythons). For example, the non-venomous oriental ratsnake, although relatively stout, lives only half as long as the pit viper. Under captive conditions, the pit viper lives 7 to 12 years, with a record of more than 15 years, and the king cobra generally lives up to 25 years. Likewise, the large and long-bodied Oriental rat snake and the Indo-Chinese rat snake live much shorter lives than the green pit viper.
Are snakes viviparous or oviparous?
Snakes are both oviparous and ovoviviparous. Snakes in the family Colubridae are all oviparous, while some snakes in the families Pythonidae, Typhlopidae and Elapidae are oviparous and some are ovoviviparous. Usually, snakes living in cold regions and high mountains are mostly ovoviviparous, such as the boa, and this mode of reproduction allows the eggs to remain in the mother's oviduct, so that the developing embryos can maintain the temperature they need without being affected by the changing external environment. Almost all sea snakes are also ovoviviparous.
How can you tell a venomous snake from a non-venomous one? Most people distinguish them simply by whether the head is triangular, whether the tail is thick and short, or whether the colors are bright, but this is not comprehensive enough, because during evolution many non-venomous snakes also developed the appearance of venomous snakes. Below, let us take a look at exactly what differences there are between venomous and non-venomous snakes!