Definition
The sei whale is a baleen whale, ranking as the third-largest after the blue and fin whales. It's known for its slender body and swift swimming. These whales filter-feed on small organisms, such as krill and copepods. They inhabit all major oceans, often migrating long distances for feeding and breeding. Sei whales face threats from ship strikes, entanglement, and climate change. Their populations have been significantly impacted by past whaling activities. Conservation efforts are essential for their recovery.