Winner – monochrome: Party Streamer
‘Orca WA007 joyfully leaps out of the Bremer Canyon after devouring a Cuvier’s beaked whale, her prey’s intestines subtly hanging from her mouth like a festive decoration. Around 300 of these mammal-hunting orcas have been recorded in this remote Southern Ocean hotspot, with unfolding research suggesting they may be their own ecotype.’ Noongar country, Southern Ocean, off Bremer Bay, Western Australia.
Photograph: Rachelle Mackintosh