02:10 South Africa Supergroup humback whale sightings on the increase in South Africa Together with dolphins, they are one of at least 37 species of marine mammals that can be found in South African waters.
01:00 Australia Rescuers save whales in Australian mass stranding "hotspot" Rescuers work to save dozens of the beached long-finned pilot whales on Australia's rugged west coast of Tasmania.
