LaTex---图片排版---多个子图构成一个大图，给子图加小标题（未解决）

最近审稿人给出评价让给下图写上小标题，但是我的模板貌似不好加

\begin{figure}[h!]
    \centering
        \subfigure[]{\includegraphics[width=0.22\hsize]{zjc-yanyang.jpg}}  
        \subfigure[]{\includegraphics[width=0.22\hsize]{zjc-yanyang2.jpg}} 
        \subfigure[]{\includegraphics[width=0.22\hsize]{zjc-lingniu.jpg}}
        \subfigure[]{\includegraphics[width=0.22\hsize]{zjc-yezhu.jpg}}\\ %\hspace{10pt}           
        \subfigure[]{\includegraphics[width=0.22\hsize]{zjc-shuilu1.jpg}} 
        \subfigure[]{\includegraphics[width=0.22\hsize]{zjc-shuilu2.jpg}} 
        \subfigure[]{\includegraphics[width=0.22\hsize]{zjc-shuiluci.jpg}}
        \subfigure[]{\includegraphics[width=0.22\hsize]{zjc-xiaojiuci.jpg}}\\ 
        
           \caption{Artiodactyls in the Wanglang nature reserve in Sichuan province}%The experimental results for $R_t= \exp \left( \left[1, -0.5, -2\right]^T \right)$.
    \label{wildlife}
\end{figure}