This article is from the Dolphin
FAQ, by Jaap van der Toorn
alt.animals.dolphins is an unmoderated newsgroup for anyone interested in dolphins. Unmoderated means that no-one is screening the messages before they are put on the newsgroup. As a result, you may occassionally see messages on that have nothing to do with dolphins. Usually these are advertisements for (often dubious) services and get-rich-fast schemes. The best way to deal with those is just to ignore them. Do not post follow-up messages and do not mail to the sender. This will only encourage them to post more messages in the future.
Topics that are suitable for this newsgroups include (but are not restricted to): requests for information, exchanges of experiences and ideas, news items etc. as long as they relate to dolphins and/or whales.
Do not post pictures in this newsgroup. These are usually large and this is not very polite to readers of the group that have to pay connection time fees. If you want to make pictures available through Usenet, post them in the designated newsgroup: alt.binaries.pictures.animals. You can then post a short announcement in this group that you have made them available there.
This group is not intended for lengthy discussion on political issues, even though these may deal with dolphins. A better platform for these discussions is the newsgroup talk.politics.animals.
For issues dealing with large whales, there is a separate newsgroup: alt.animals.whales. Not every provider forwards its messages, however.