Monkeys can certainly survive in North America. The Mystery Monkey of Tampa is proof enough of that. But for them to survive here, they have to get here--the monkeys that were here, the Platyrrhines, aren't the ones to survive in a place like Tampa.
Most people enroll in Part A. when they are first eligible for Medicare because there is no premium for Part A if you have. worked and contributed to Social Security for at least 10 years. However, when you should. enroll in Part B depends in large part on how many employees work for your employer.
Three months after the month you enroll. Three months after you turn 65. Three months after the month you enroll. Once your Initial Enrollment Period has passed, your next chance to sign up for Medicare Part A and Part B is the General Enrollment Period that occurs every year from January 1 to March 31.