In Matthew 25, the Son of Man separates the nations as a shepherd separates sheep from what?

Answer: Goats

When the Son of Man sits on his glorious throne, he will separate the people as a shepherd separates sheep from goats.

“When the Son of Man comes in His glory, and all the angels with Him, He will sit on His glorious throne. All the nations will be gathered before Him, and He will separate the people one from another, as a shepherd separates the sheep from the goats. He will place the sheep on His right and the goats on His left.”— Matthew 25:31-33 (BSB)