To be fair, this was a comment about commercially produced cows milk.
Then the statement can be corrected:
As if billions of mammals suddenly cried out in terror, and were suddenly silenced.
https://en.wikipedia.org/wiki/Milk
alt Hacker News
Then the statement can be corrected:
As if billions of mammals suddenly cried out in terror, and were suddenly silenced.
https://en.wikipedia.org/wiki/Milk