frog's bones

The most interesting lesson in college is biological experiment. Few weeks ago, we anatomized frog and mouse. They were smelled sooooooooooo bad. The frog was very big. After anatomized it, we flayed the frog, then cut his muscle. Throw the frog after cleaning up his skin, muscle, and all tissue. At the time, you will nose out something like chicken.
It is not the ending. We took the frog’ bones home, not, to our dormitory. We dipped them into suds for 3 to 5 days. Everyday, you have to clean the bones and change suds or it will smell very bad.
The crucial work is coming. You have to piece the bones together just like jigsaw! It took our several hours, even several nights. Very interesting, but very suffering!