An aspect not yet mentioned is the fact that, at outdoor nature museums, larger dogs may chase away the very animals the site has been charged to protect.  While smaller animals may become feed for the raptors or coyotes (we live in Texas!) that are part of the nocturnal activity in a nature center.
 
Great comments --
========================================================= Important Subscriber Information:

The Museum-L FAQ file is located at http://www.finalchapter.com/museum-l-faq/ . You may obtain detailed information about the listserv commands by sending a one line e-mail message to [log in to unmask] . The body of the message should read "help" (without the quotes).

If you decide to leave Museum-L, please send a one line e-mail message to [log in to unmask] . The body of the message should read "Signoff Museum-L" (without the quotes).