When a fish eats another fish does it spit out the bones?

When a fish eats another fish, it typically consumes the entire prey, including the bones, but the extent to which it digests the bones depends on the species and size of the fish. Some fish have strong stomach acids that can help break down bones, while others may not fully digest them. In certain cases, smaller bones may be expelled or regurgitated, especially if they are indigestible. Overall, the process varies based on the fish's diet and digestive capabilities.