These is the plural form of this and those is the plural form of that and what you were taught is correct Maria, although i can understand why someone might want to avoid referring to a different group of people as "those people" as this can sound quite cold / isolating.
What is the word "these" in locative case? And what would the two words "This animal" as well as "that animal" in locative case?
"these" (animals) -> tych (zwierzętach)
this/that animal -> tym/tamtym zwierzęciu
In different ways we describe how far are things we have : te, te tamte these, those, those
tamte are only those of "those" that are more distant. :) you always translate tamte to those.
But in English, you could still use these for something distant. I could be talking about North and South Korea and say, "These countries are like brothers, always fighting over the most trivial things." I could also say those instead. I think this is why to could be this or that. In English, there just isn't a strong distinction between the two.
But those can be a lot more.. Exclusive. Kind of like when someone says "you people". To me, "Those people sacrifice people" sounds different than "These people…"
"I am speaking of those animals" sounds antiquated to me. "I am speaking about those animals" would be more common and contemporary.