Detailed Instructions: In this task, you're given a context, further information available on a particular linked term from the statement, and an answer term. Your job is to generate a question that can use the information provided to obtain the given answer. You should use the information on both context and link information to create the question. Note that the answer to the question should be exactly the given answer, and if the answer is none, the answer to the question shouldn't be obtainable from the context or linked information.
Q: Context: The national park was proclaimed under the National Parks and Wildlife Act 1972 (SA) by the South Australian Government on 26 September 1996 principally to protect the calving waters of the Southern right whale and the Australian sea lion populations. Link Information: Approximately 10,000 southern right whales are spread throughout the southern part of the Southern Hemisphere.

Answer: Australian sea lion
A:
Which animal population that the National Parks and Wildlife Act 1972 protects has the larger numbers?