This is a most interesting article about the Titanic. I had never before given any thought to the fact that there might have been pets on board the Titanic. Probably because it is a very sad thought.
This article in Yahoo News says there were quite a few on board. A few small ones survived because they were taken on board life rafts by their owners. Other were much too large and did not survive.
The tale of the mother cat who removed her kittens from the ship promptly when it docked in a port before the disaster is very interesting. It might be wise to pay more heed to our animals behavior.