Hooves pound in Uganda with antelopes returning (7)

I believe the answer is:

ungulae

I'm a little stuck... Click here to teach me more about this clue!

'hooves' is the definition.
Both the definition and answer are plural nouns.
Perhaps there's a link between them I don't understand?

I don't understand the rest of the clue.

Can you help me to learn more?

I've seen this clue in The Sunday Times and The Times.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.