Rescuing whales on Australia’s ‘humpback highway’
It's like a needle in a haystack: how do you find one entangled whale in a vast expanse of ocean?
Then how do you free the 20-tonne giant from a maze of constraints when it is panicked, sometimes angry, often injured, and always determined to evade you?
That's a riddle that marine rescuers like Wayne Phillips have to solve on an increasingly regular basis.
Each year, an estimated 40,000 humpback whales leave the freezing waters of Antarctica on the world's longest mammal migration.
They make their way up Australia's east and west coasts to the tropics before returning, calves in tow, a couple of months later.
For most Australians, the so-called "humpback highway" from May to November is a fun and exciting spectacle.
Bu...