texts: Please - - let's hear something from the others.  Dr. Grant?  I am sorry - - Dr. Sattler?
labels: The question is - - how much can you know about an extinct ecosystem, and therefore, how could you assume you can control it?  You have plants right here in this building, for example, that are poisonous.  You picked them because they look pretty, but these are aggressive living things that have no idea what century they're living in and will defend themselves.  Violently, if necessary.