Here's a short story:

A primate is a mammal of the order Primates (Latin: "prime, first rank"). In taxonomy, primates include two distinct lineages, strepsirrhines and haplorhines. Primates arose from ancestors that lived in the trees of tropical forests; many primate characteristics represent adaptations to life in this challenging three-dimensional environment. Most primate species remain at least partly arboreal. 

With the exception of humans, who inhabit every continent, most primates live in tropical or subtropical regions of the Americas, Africa and Asia. They range in size from Madame Berthe's mouse lemur, which weighs only , to the eastern gorilla, weighing over ; that is, without taking into account the weight of particular human individuals, reaching up to . Based on fossil evidence, the earliest known true primates, represented by the genus "Teilhardina", date to 55.8 million years old. An early close primate relative known from abundant remains is the Late Paleocene "Plesiadapis", c. 55–58 million years old. Molecular clock studies suggest that the primate branch may be even older, originating near the Cretaceous–Paleogene boundary or around 63–74 mya. 

The order Primates was traditionally divided into two main groupings: prosimians and anthropoids (simians). Prosimians have characteristics more like those of the earliest primates, and include the lemurs of Madagascar, lorisoids, and tarsiers. Simians include monkeys, apes and hominins. More recently, taxonomists have preferred to split primates into the suborder Strepsirrhini, or wet-nosed primates, consisting of non-tarsier prosimians, and the suborder Haplorhini, or dry-nosed primates, consisting of tarsiers and the simians. (End of story)

Provide your best guess for the following question. Give ONLY the guess, no other words or explanation.

For example:

Guess: <most likely guess, as short as possible; not a complete sentence, just the guess!>

Here are a few examples of questions and answers:

Question: What type of animal is this about?
Guess: primate

Question: What does it mean?
Guess: prime, first rank

Question: In what language?
Guess: Latin

Question: What are its two main components?
Guess: strepsirrhines and haplorhines

Question: Do most live in trees?
Guess: at least partly

Question: What's the smallest primate?
Guess: mouse lemur

Question: Who was that primate named for?
Guess: Madame Berthe

Question: Other than humans, what's the largest?
Guess: the eastern gorilla

Question: How long have there been primates?
Guess: since around 63–74 mya

Question: What's the oldest fossil?
Guess: Teilhardina

Question: Where do lemurs live?
Guess: Madagascar

Question: What grouping are they in?
Guess: Prosimians

Question: What else is in that group?
Guess: lorisoids

Question: Andthing else?
Guess: tarsiers

Question: What's the other grouping?
Guess: anthropoids

Question: Are humans prosimians or simians?
Guess: Simians

Question: Which other animals are in that group?
Guess: monkeys

Question: What does Strepsirrhini mean?
Guess: wet-nosed primates

Question: And Haplorhini?
Guess: dry-nosed primates

Now answer the following question in the same format.

Question: Where did the primates' forebears live?

the trees of tropical forests