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.
1 Coral snakes are the only venomous snake in North America that is not a pit viper. 2  Coral snakes are related to mambas, cobras, and sea snakes. 3  A variety of rhymes have been developed to properly identify a coral snake. Coral snakes are the only venomous snake in North America that is not a pit viper. 2  Coral snakes are related to mambas, cobras, and sea snakes. 3  A variety of rhymes have been developed to properly identify a coral snake.