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.
Colorado is home to about 30 species of snakes. Of these, only three snakes are a risk to humans: the prairie rattlesnake, the Western rattlesnake (also known as the midget-faded rattlesnake) and the massasauga rattlesnake. Do you see the pattern here? The only venomous snakes native to Colorado are rattlesnakes. Prairie rattlesnakes are abundant and are found statewide in nearly every type of habitat (prairies, foothills, riparian corridors and towns/suburbs) below 9,000 feet.