Listen
Dr Leigh Torres has just completed her research survey of the South Taranaki Bight, where she found 68 blue whales this year - more than twice the number they saw last year.
The area is New Zealand's only known blue whale foraging ground.
Listen
Dr Leigh Torres has just completed her research survey of the South Taranaki Bight, where she found 68 blue whales this year - more than twice the number they saw last year.
The area is New Zealand's only known blue whale foraging ground.