Marsupials such as possums and kangaroos all have muscles that will close their pockets to keep their young snug and protected from the cold. They do not use these muscles to hold their babies ...

as well as to study other relevant aspects of marsupial biology. For example, gliders have evolved pockets inside their pouches to protect babies from the impact forces of landing on trees 1.

The marsupial mole, an elusive creature that swims through the sands of remote Australian deserts, seems to have suffered an abrupt population crash about 70,000 years ago, possibly due to climate ...