I want to create a horizontal tree-like structure using braces, as in:
horizontal tree http://bto.io/files/horizontal_tree.jpg
Please forgive my lack of creativity.
I tried using an equation, for example
\begin{equation*}
\text{Animals}
\left\{
\begin{aligned}
& \text{Cats} &
\\
& \text{Dogs}
\end{aligned}
\right.
\end{equation*}
except this is difficult to read and I cannot get the third layer.
I suspect the forest package would work.