I've always appreciated that the black rat's name is Rattus rattus. It's the rattiest rat that's ever ratted, it's right there in the name.
And the Eurasian Brown Bear aka Bear bear bear!(Ursus is Greek for bear, Arctos is Latin for bear)Bonus fun fact: the Arctic and the Antarctic roughly translate to "the place with bears" and "the place without bears", respectively.
Just like Pat is short for Patthew.
I was today years old when I learned it's not short for Pathaniel
And why is there Jennifer but no Jerryfer? Or Johnnyfer?