Are we in Jurassic Park?

For three weeks of training, I am up in the mountain on the island Nguana(which is my island). I am staying in the village Mere. We have to walk up the mountain for about 40 minutes then we walk down on the other side for about 10 minutes down a STEEP hill. As we walk, we pass one bull and one cow. It is crazy that they are chained up but the can still get to our walking path. We have had to move/scare the cows once or twice to move off the path. So not thinking about these animals at night, leads me to my title. A few times during the week in the middle of the night, I swore I heard T-Rex from Jurrasic Park. I literally woke up thinking I am in Jurassic Park. In the morning, while talking to other volunteers they too thought we were in Jurassic Park. But then one of them said it was probably the cows. After a few minutes thinking about it, we thought you are probably right. But it was still scary.