Here's why:
* Apes: Apes are a group of primates that lack tails. They include:
* Great apes: Gorillas, chimpanzees, bonobos, orangutans, and humans.
* Lesser apes: Gibbons and siamangs.
* Hominids: Hominids are a specific family within apes that includes humans and our extinct ancestors.
So, while all apes lack tails, the term "hominid" specifically refers to apes that are closely related to humans.