Assertion: echidna's baby | /r/CapableOf | leave the pouch
Facets:
Source sentences:
text: The baby begins to develop spines in 2 to 3 months, and must leave the pouch, but the mother continues to nurse it for up to 7 months.
text: In a few weeks, the baby (called a puggle) develops sharp spines, and must leave the pouch.