Here's what they eat:
* Krill: Tiny crustaceans that are a primary food source for many whales.
* Small fish: Including herring, sardines, and anchovies.
* Squid: Cephalopods that are also a favorite of these whales.
* Other crustaceans: Such as copepods and amphipods.
They filter feed by:
1. Opening their mouths wide and swimming through a school of prey.
2. Taking in large amounts of water containing the food.
3. Closing their mouths and pushing the water out through their baleen plates, which act like a sieve to trap the food.
4. Swallowing the concentrated food.
Fun fact: Humpback whales can eat up to 3,000 pounds of krill in a single day!