Smilodon gracilis ("the slender Smilodon") was the smallest and earliest of the sabertooth cats. It first appeared in the United States about 2.5 million years ago and lived until about 500,000 years ago.
... and opens in the vulva between the clitoris and the vaginal opening.
In the human male, the urethra is about 8 inches (200 mm) long and opens at the end of the penis. ...