More than 12 million animals, including frogs, cats, rats, fetal pigs, fish and a variety of invertebrates ... the muscular system, or the digestive system. (3) “Dissection,” with which you can ...

In North America, animal dissection remains commonplace in K-12 science education ... There are a wide variety of other species options, including cat, fetal pig, earthworm, and crayfish. Patience is ...