marsupial
/ˈmɑːrspuːiəl, ˈmɑːrsuːpiəl/Definitions
1. noun
any of a group of mammals that give birth to a relatively undeveloped fetus and then complete its development inside a pouch on their body
“The marsupial family is known for their unique reproductive strategy.”
2. noun
a mammal of the order Marsupialia
“Some common examples of marsupials include kangaroos and koalas.”