Rescue efforts to save whales stranded on a sandbar take place at Macquarie Harbour, near Strahan, Tasmania, Australia, September 22, 2020. Australian officials on Thursday began planning the grim task of disposing of almost 400 whale carcasses as hopes faded there would be many more survivors of one of the world's biggest mass strandings of the mammals. Brodie Weeding/Pool via REUTERS

Rescue efforts to save whales stranded on a sandbar take place at Macquarie Harbour, near Strahan, Tasmania, Australia, September 22, 2020. Rescuers had managed to free around 70 of the long-finned pilot whales beached off the country's remote southern coast by Thursday afternoon. Brodie Weeding/Pool via REUTERS

Rescue efforts to save whales stranded on a sandbar take place at Macquarie Harbour, near Strahan, Tasmania, Australia, September 22, 2020. The clock was ticking for the remaining 20 whales still floundering in shallow water on a wide sandbank, four days after the 470-strong pod was first spotted off the northwest coast of the island state of Tasmania. Brodie Weeding/Pool via REUTERS

Whale rescue efforts take place at Macquarie Heads in Tasmania, Australia September 23,2020 in this still picture obtained from social media video. Bilal Rashid via REUTERS

Rescue efforts to save whales stranded on a sandbar take place at Macquarie Harbour, near Strahan, Tasmania, Australia, September 22, 2020. Brodie Weeding/Pool via REUTERS

Stranded whales are seen along the coastline near the remote west coast town of Strahan on the island state of Tasmania, Australia, September 23, 2020. AAP Image/Patrick Gee/The Mercury/via REUTERS