you have to do science and math
Veterinarians usually specialize in general medicine, although often times they need to be well educated in animal science and health, dentistry and biology.
earth science
Cancer.
Medical Science
Emergency Medicine
Mycologists study fungi.
Science is too broad of a topic to tackle as a whole.
If you want to obtain a science degree, you should look into colleges that specialize in the field of science and technology. For example, California Tech and MIT are excellent options.
They specialize in science
an equestrian vet is known as an 'equine vet'. They study large animals, then specialize into horses.
An archaeologist specializes in the field of anthropology, specifically in the study of past human societies through the examination of artifacts, structures, and other physical remains.