We have read about gents and ladies making love with creatures, e.g., canines (Females On Top, by Nancy Friday, Simon & Schuster, 1991).

We have read about gents and ladies making love with creatures, e.g., canines (Females On Top, by Nancy Friday, Simon & Schuster, 1991). In addition to they being against the law (i do believe), are there healthcare explanations why that isn't recommended? Including, are there STDs that may be passed...