Why do whales vomit and make ambergris?

Whales vomit to expel indigestible materials or toxins that their bodies cannot process, such as the hard beaks of squid. This expelled substance can sometimes harden and age into ambergris, a waxy, solid material that is highly valued in perfumery for its ability to enhance fragrance. Ambergris also serves as a buoyant substance that helps whales in navigating ocean currents. Its formation is still not fully understood, but it is believed to be a natural byproduct of the whale's digestive process.