Sharks: Some shark species, like the tiger shark and great white shark, are powerful predators known to occasionally prey on humpback whales, especially calves or weakened individuals.
Hunting: Historically, commercial whaling was a significant threat to humpback whales and led to substantial population declines. While many nations now enforce regulations to protect humpback whales, they may still face localized hunting threats in certain regions.
Please note that while these are important enemies or risks faced by humpback whales, conservation efforts and protective measures have significantly reduced the impact of some these factors, leading to the recovery of humpback whale populations. Nevertheless, ongoing monitoring and protection are crucial to ensure their long-term survival.