Form in zoology refers to the physical appearance or shape of an animal. Just like how people have different body shapes, animals also have different forms.
For example, a penguin has a form that is different from a giraffe. Penguins are shorter and have flippers instead of hands, while giraffes are taller with long necks and hooves instead of feet.
Scientists use the study of form, called morphology, to classify animals into different groups based on similarities in their physical structures. Animals with similar forms are grouped together, which helps us understand their relationships and evolutionary histories.
So basically, form in zoology is all about the way an animal looks on the outside and how scientists use this information to make sense of the animal kingdom.