The Biomimicards are very interesting to discover how Nature has been relevant for 3.8 billion years, they will also help you to have great interactions between the participants. You probably can't imagine how interesting it will be to know the different points of view on a same situation.
Take pens and post-it and write down all the ideas, all of them can be useful, linked and enriched with a new one. Do not use all the cards in the same time, indeed, act like Nature does, use only what you need. Each card has several useful points and informations.
When there are less interactions, give some new cards. Maybe a participant will have a joker, it will very probably offer new ideas in this flow.