1.  The plural of rhinoceros can be either rhinoceroses, rhinoceri or simply rhinoceros.  (Pretty flexible for such a  big dude.)

2.  A rhinoceros is an “odd-toed ungulate’ (but you’re advised to not tell him that to his face.)  An ungulate, by the way, is a hoofed mammal.  I’ve been told I resemble a hoofed mammal when on the dance floor, but this post isn’t about me, is it?

3.  Four of the five species of rhinoceros are either endangered or critically endangered. And the fifth (the white rhino) is near-threatened.  There are only about 60 Javan rhinoceri left.

4.  The famed rhinoceros horn is not actually a horn at all, being made of thickly matted hair protein.  (My own coiffure often resembles thickly matted hair protein…on a good day.)

5.  The white rhinoceros and the Indian rhinoceros are, after the elephant, the largest existing land animals.  (Only invite all three to a party if you have a really ample living room.)

6.  The white rhino is not really white, nor is the black rhino black; they’re both more on the gray spectrum.

7.  The Javan rhino lives in Indonesia and Vietnam.

8.  Although you might think otherwise to look at them, these guys are herbivores. They also have a great sense of smell and hearing, but eyesight?  Not so good.  (Glasses just don’t seem to be an option, and have you ever tried to get a rhino to put in contacts?)

9.  What’s the name for a group of rhinos?  A “crash.”  (That is so cool.)

10.  Depending on the species, gender, age, etc., a rhino can weight from 750 to 8,000 pounds.