Can you eat a spiny dogfish?

Yes, you can eat spiny dogfish, but it's not as straightforward as grabbing one from the ocean and chomping down. Here's why:

* The Liver: The liver of spiny dogfish contains high levels of urea, which is toxic to humans. This means the liver needs to be carefully processed and treated to remove the urea before consumption.

* The Skin: Spiny dogfish have rough, prickly skin that needs to be removed before eating.

* Mercury: Spiny dogfish, like other sharks, can accumulate high levels of mercury in their flesh, particularly in older, larger fish. Therefore, it's crucial to limit your consumption and avoid eating them frequently.

* Other Considerations: While spiny dogfish is edible, the meat can be quite tough and require special preparation, like slow-cooking, to make it palatable.

In summary:

You can eat spiny dogfish, but it requires proper preparation and knowledge of the risks. It's best to purchase it from a reputable source that has processed it safely and to consume it in moderation.