American Indians do not prefer the term "Native Americans," or "Indigenous;" the term "Indian" isn't offensive.
Owls are the only bird that can see the colour blue. Ironically, Bluebirds are unable to see their own colour.
When an elephants' partner dies, they will lay next to their deceased lover and starve themselves until they too meet death. ?
Only according to PC culture and SJWs. They is not singular, but the masses misuse it as a singular in order to be politically correct. If the gender of an actor (someone doing an action) is unknown, the correct (and traditional) thing to do is to use a masculine pronoun to refer to said actor.