Marsupial and placental mammals diverged from a common ancestor more than 100 million years ago, and have evolved independently ever since. The two groups have different modes of reproduction ...

Australia and South America were isolated from other continents during much of the Tertiary, and marsupial mammals thrived and diversified there, while placental mammals took over similar roles on ...

Although its trunk is somewhat like that of today's Tapir (a placental mammal), the Marsupial Tapir is actually a diprotodontoid marsupial — a relative of the extinct Diprotodon. Its closest ...

No other continent has the egg-laying monotremes and the pouched marsupials living side by side with placental mammals. Understanding how this unique collection of creatures came to be here has ...

They discovered that the pivotal heat-producing protein called UCP1 became active after the divergence of placental and marsupial mammals. This finding is crucial for understanding the role of ...