Important Ooca being tracked - Dr Ingrid Visser

The country's pre-eminent expert on orca is celebrating what she says is an important discovery about one particular animal, which may have much wider implications. Dr Ingrid Visser has been tracking one orca for a decade, and just yesterday she got close enough to it, to identify it as a female. And she says that provides important information about how orca can survive strandings. Dr Visser is the founder and principal scientist of the Orca Research Trust.