there is a great documentary called the woman who swims with killer whales which documents dr. ingrid visser's research and rescue efforts of the new zealand or

there is a great documentary called the woman who swims with killer whales which documents dr. ingrid visser's research and rescue efforts of the new zealand orca population. her research has done a lot to showcase that the orcas are in danger, particularly of toxins. she shows in the documentary how she recovers discarded rays and does toxicity reports on the rays to theorize what toxicity levels the orcas have, since they are their primary, if only, source of food. (the "resident", fish-eating orcas are extremely picky.) the woman who swims with killer whales: https://vimeo.com/45809457 https://vimeo.com/45809457