They don't. The most common language is English, but almost any other language used by other people is used by scientists. Latin is used for some formal names and words because it is a dead language and won't change in meaning, but is not used as a language itself for communication.
All scientists recognize this language.
Bellis perennis
Loqui - means 'to speak, talk, say.'
You would call such a person a Latinist, which means a specialist in Latin. If they've studied the language for many years, they should be able to speak it. Once you learn to read the language fluently, speaking is a matter of time. There is a priest in Rome who teaches spoken Latin. His name is Fr. Reginal Foster, and if Augustine popped out of the ground, they could talk about his theory of just war. Wouldnt that be a sight to see...
Scientists may use different words than common people.Special terminology proficiency, when used correctly, shows that the speaker is competent in the field and belongs to the trustworthy community of experts. To make things simpler, for informality between themselves and for fun, experts invent their own jargon. This is not just scientists but in all groups of people.
Scientists use scientific names (binomial nomenclature) to avoid confusion due to different common names for the same species in different regions or languages. Scientific names provide a universal system that accurately identifies and categorizes organisms based on their characteristics and evolutionary relationships. This helps in standardizing communication among researchers and ensuring clarity in scientific literature.
to talk in Latin is "narrere"
You talk about them. You can say things like scientists have said this.
It is Latin for 'jawbone'. Scientists frequently use Latin words for things they are naming.
People still study Latin so scientists can read remains from the old times.
it easier for scientists from all the countries to understand
what terms do scientist talk about volcano
scientists use latin terms to name an object.
Latin. That is why scientists were suppose to know how to speak it.
All scientists recognize this language.
Bellis perennis
No, in Latin America Spanish is spoken, therefore they are called by their Spanish names. Latin is used by scientists to identify animals because the language is no longer evolving.