Zoologist in my knowledge but could be something else. :D
what do we call scientists who study plant
We call these scientists horticulturists.
Scientists refer to the study of weather as meteorology.
taxonomist
Meteorologists.
Normally, scientists will examine the content of the animal's stomach and intestine to get an accurate reading on what the animal had eaten.
locomotorology
Generically they are called "biologists" There are also specializations such as Zoologist (study of animals) Botanist (study of plants) etc.
a cytologist cyto- cell
The study of muscle is very important in the animals in a variety of ways from the way the animal protects itself to the way the animal feeds.
Animal pathologists may be veterinarians or zoologists (animal scientists). Veterinarians specializing in pathology study diseases and disorders in animals.
These scientists are called anthropologists.