I hope you don't scare to easy. i have tales to tell you of orcs like in lord of the rings. 
Oh sweet. On the contrary I am interested in creatures like orcs. There are many different kinds though. 
yes, beside being fictitious and humanoid, there is a large group from different media. 
Okay sure. They are often characterized as a vicious and ferocious creature. I hear they eat their own kinds?
that could be true. References go as far back as the 16th century, so I'm sure they have done that. 
The 16th century? Wow I am surprised. I wonder who first thought of the creatures back then. Or they may be a mythological creature I guess?
You can thank Beowulf. That would be some the earliest references in literature. . 
Oh I see. So there were references like millennia ago. Interesting!