The “driller killer” from Minnesota who killed the beloved Cecil the lion bagged an endangered ram in Mongolia last year.

Dentist Walter Palmer, 60, forked over almost $100,000 for the pleasure of killing an endangered Altai argali — the world’s biggest ram — in Mongolia last August. The enormous sheep are considered a national treasure and, with only 19,000 left in the world, are on the endangered species list.

Coincidentally, Donald Trump Jr. caused…