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).
Bipedalism is a form of terrestrial locomotion where an organism moves by means of its two rear limbs or legs. An animal or machine that usually moves in a bipedal manner is known as a biped /ËbaÉªpÉd/, meaning two feet (from the Latin bis for double and pes for foot). Types of bipedal movement include walking, running, or hopping. Few modern species are habitual bipeds whose normal method of locomotion is two-legged.