Learn English – Single word for “Young of an animal”

Cruel is possibly the most often used adjective for this context, though from my experience cruelty (as a noun) is more common. (E.g. SPCA stands for the Society for the Prevention of Cruelty to Animals.) The Wikipedia article is called Cruelty to animals and says that it is also called animal abuse or animal neglect.

Though there is no such word used exclusively for animals, we are not much the worse for the lack, since context will dictate the meaning of any word we choose when describing cruelty to animals. For instance, if someone spoke of "inhumane treatment of animals", we would not think he meant "not suited for human beings"; we would understand that he was referring to cruelty to animals. This shows that many synonyms of cruel/inhumane can be used and understood properly.

It's worth noting that even if the word inhumane is not commonly used to describe cruelty to animals, humane appears to be most often used as its antonym, as in the Humane League, Humane Society, or humane treatment.

What a delightfully ghoulish question :) Given the option, I'd say

1. infant flesh
2. young adult flesh
3. wizened flesh

Generally speaking, beef is grouped into three classes

1. milk-fed veal
2. young beef
3. aged beef