However even 18 hours is not considered abnormal for a Chihuahua. This includes naps.There are 2 types of sleeping. One is a lighter sleep (called slow wave) and the other is the deeper sleep (known as REM-Rapid Eye Movement). Dogs, just like humans do have these 2 different types of sleep.
Probably the best known snake in the world, the Rattlesnake is a pit viper found almost everywhere in the United States, and is capable of a deadly bite. Its trademark rattle strikes fear into anyone who hears it.
Snake bites to people tend to be warning bites, and as such contain little venom. The most common venomous snake in the eastern states, copperheads are considered pit vipers, but unlike most other vipers, the copperhead does not flee when it is caught unawares.Instead, the snake will freeze in its current position.f all the pit vipers, copperhead venom is the least toxic. Breeding does not take place every year, but a female snake will give birth to live young. Litters can consist of up to twenty young, though fewer than ten is most common. As with the majority of reptiles, the babies are on their own once they are born.