victor dog, it is listen to the earth and what if we could create a portal that could look at the past, the present and the future? >> you can change what is then missing by changing the software, by changing what is projected and missing. so, missing isn't a static installation. it is an installation that is going to grow and change over time. and she has worked to bring all of this information together from laboratory after laboratory including, fortunately, our great fwroup of researche e-- g researchers at the california academy. >> this couldn't have been more site specific to this place and we think just visually in terms of its scupltural form it really holds its own against the architectural largest and grandeur of the building. it is an unusual compelling object. we think it will draw people out on the terrace, they will see the big cone and say what is that. then as they approach the cone tell hear these very unusual sounds that were obtained from the cornell orinthology lab. >> we have the largest recording of birds, mammals, frogs and insects and a huge library of videos. s