When a porpoise died

Purpoise died in Paracas Peru

2 similar bodies were found on a paracas beach in Peru. Due to advanced state of decomposition, it is difficult to accurately determine the species. We can still say that this is a porpoise.
According to local medias, sonar 3D method used to look for oil and gaz, overfishing or water pollution is a possibility to determine the cause of the death.

Second porpoise dead body



Decomposition level: 

Reason of death: