Speakers of a particular language? No.
Kind Hearts and Coronets? No.
Continent = Europe? Yes, although my earlier agreement that they were "mostly to be found on one continent" was in fact slightly inaccurate. A better statement is that the majority are to be found in Europe.

... just to cover the other possibility :-)

We have a winner! "Surviving World War One Veterans" were the words on the card. Looking back, Chalky's first ("a human being?") question, which I couldn't resist answering as "not yet", led you all to run after a large number of untamed waterfowl. I was surprised to discover that there are still at least 15 (plus maybe another 8 depending on exactly how you count) living WWI vets.

One batonet handed carefully to Chalky.

---

* who not-so-carefully wallops CdM's backside with it*
... and if I'd have missed out the indefinite article in that question, who knows how you might have replied ;-)

Will post a new one at 0730 GMT

Next up - A B S T R A C T with Animal connections

[Graham III] Animal connections Human? Not yet ......

Only joking :-) YES

[Irouléguy] Specific human? NO
[Kim] Mythical character? NO
[Bigsmith} A fictional character? NO

[Raak] To do with mathematics? NO - not really
[Rosers] A human characteristic? NO

[CdM] Referencing human body or body parts? Strictly speaking ... YES [see next reply]
[Graham III] Activity? YES! *applause*