A newly identified branch of the marsupial family tree is adding a surprising twist to the history of Australia's most distinctive mammals. The finding suggests that their evolution was more complicated, and more mysterious, than scientists previously understood.
Marsupials first reached Australia more than 55 million years ago. Since then, they have spread into an astonishing range of habitats and lifestyles. Today, they include about 160 species, from High C...

2 days ago
13








English (US) ·