Feather-Tailed Possums Migrated From New Guinea to Australia Millions of Years Ago

Analysis of Riversleigh fossils has revealed fascinating new facts about a tiny possum's ancestors. Scientists have long known that the miniature feather-tailed possums in Australia and the island of New Guinea—members of the marsupial family Acrobatidae—were evolutionary cousins, but where they started their long evolutionary journey has been a bit of a mystery—until now.