Illegal drugs such as marijuana, cocaine, and methamphetamine aren't the only drugs that are harmful to fetal development; Commonly used over-the-counter medicines, along with substances such as caffeine and alcohol, can have lasting effects on an unborn child.
A quadruped is an animal that normally walks or runs on four legs. The word comes from the Latin words quad (four) and ped (foot).A quadruped is a land mammal that walks on four feet.The term quadruped has its root in Latin language - quad meaning four, and ped meaning feet - so the term literally means four feet..umans, for instance, have four limbs, but only two of those limbs are used for walking, therefore humans fall into the category of a biped-an animal that uses two legs to travel. Notably, birds are also considered bipedal. The word quadruped is from the Latin words quad (four) and ped (foot).
An all-terrain vehicle (ATV), also known as a quad, quad bike, three-wheeler, four-wheeler, or quadricycle is defined by the American National Standards Institute (ANSI) as a vehicle that travels on low-pressure tires, with a seat that is straddled by the operator, along with handlebars for steering control.