This photo below has been extensively passed around the web today, and for good reason: it's a peak into the rarely-seen world of mechanically separated meat, or Advanced Meat Recovery (AMR).
Folks, this is mechanically separated chicken, an invention of the late 20th century. Someone figured out in the 1960's that meat processors can eek out a few more percent of profit from chickens, turkeys, pigs, and cows by scraping the bones 100% clean of meat. This is done by machines, not humans, by passing bones leftover after the initial cutting through a high pressure sieve. The paste you see in the picture above is the result.
This paste goes on to become the main ingredient in many a hot dog, bologna, chicken nuggets, pepperoni, salami, jerky etc...
The industry calls this method AMR - Advanced Meat Recovery.
Once the "chicken" has been processed, it has to be soaked in ammonia (to kill all the bacteria), then flavoring has to be added (because otherwise it tastes like s**t), and it has to be dyed, because people would freak out if their McNuggets were cremed-strawberry colored (the color of flesh and blood).
And then you feed it to small children. Scary!