Rotten Tomatoes
- Collection of reviews.
- http://www.rottentomatoes.com/m/instinct/

Roger Ebert - Instinct
- Review of the film.
- http://rogerebert.suntimes.com/apps/pbcs.dll/article?AID=/19990604/REVIEWS/906040301/1023

IMDb - Instinct (1999)
- List of the cast and crew, plot synopsis, and user comments.
- http://us.imdb.com/title/tt0128278/

Instinct
- Official site with plot synopsis and credits.
- http://video.go.com/instinct

The Nitpickers Site: Instinct
- User-submitted bloopers and mistakes.
- http://nitpickers.com/movies/titles/116778.html

American Humane Association
- Review of the way animals were used and treated during filming.
- http://www.ahafilm.info/movies/moviereviews.phtml?fid=96

Allwatchers Review - Instinct
- Review of the film.
- http://www.allwatchers.com/Topics/Info_5243.asp

All-Reviews.com - Instinct
- Collection of reviews and facts about the movie.
- http://www.all-reviews.com/videos/instinct.htm

Apollo Leisure Guide
- Review of the film.
- http://apolloguide.com/mov_revtemp.asp?cid=1236