A paleontologist studies dinosaurs and can also delve into the ancient life of humans and other animals too, although archaeologists also study old civillisations.
They're called Paleontologists.
carbon dating through fossils
An Ecologist is a scientist who studies ecosystems.
paleatolajust
a type of scientist who studies about metal is called metallururgist
what is the scientist that studies motions? A Physicist
A mineralogist studies minerals.
An ecologist studies pollution
The kind of scientist who studies Urology would be a Biologist, since Urology concerns a biological function (urination). If you mean the kind of doctor who studies Urology, that would be a Urologist.
meteoroligists
An Ichthyologist.
Audiologist
cosmologists
Botanist