I want to know the answer to the following question:
What type of whales were once common in Norfolk Island, but hardly any remain today?
All the background I'm provided with is that "Today, numbers of larger whales have disappeared, but even today many species such humpback whale, minke whale, sei whale, and dolphins can be observed close to shores, and scientific surveys have been conducted regularly.". Is that enough to answer the question?
Answer: no