The world mourns the loss of Malaysia's last male Sumatran rhino. Can anything stop the slide of the species towards extinction?
Scientists have created embryos from the eggs of southern white rhino and sperm from their northern counterparts.
Rhino resurrection is tempting, but if humans cannot save a species in nature, what future for animals that we manufacture?
Study shows the footprint of climate change is already vast and that species are trying to adapt to rising temperatures.