to study dolphins
You see their tail hear and the tail there you can't see them at all
Scientists have had many opportunities to study the dolphins of Shark Bay, as these dolphins happily interact with people. One thing they have noticed is that dolphins in this area use marine sponges as tools, with the parent dolphins actively teaching their youngsters how to use them. Apparently, dolphins use the marine sponges for protection, using them like gloves to protect their sensitive rostrum (snout), while seeking out prey from the rocky seabed. They have also been observed using the sponges as tools to detect bottom-dwelling fish that lack swimbladders, and which cannot be detected by the dolphins' usual methods of vision and echolocation.
Scientists use mainly fossils.
whattools do scientist use to study meteors
Scientists use an electron accelerator :)
so scientists can detect smaller objects to study
a model of a ear
The study of dolphins falls under the category of cetology.
GPS devises
The fossil record
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study for it