Tag: Fish biology

In a study published by Kasetsart University, scientists found that goldfish possess significant levels of digestive enzymes, including amylase, protease, and lipase. While all animals produce enzymes for digestion, a goldfish's enzymatic profile is uniquely adapted to its omnivorous diet and specialized digestive anatomy, prompting the question: does goldfish use animal enzymes in the same manner as mammals?

Over 95% of all animal species are invertebrates, a group that includes shrimp. Despite both living in water, shrimp do not count as fish, a fact based on fundamental biological differences in their anatomy and classification.

The fat of many fish remains liquid even in freezing ocean temperatures, a unique and staggering biological adaptation. This unique characteristic, prompting the question, 'Why is fish fat liquid?', is a direct result of its specific molecular makeup and the presence of health-boosting polyunsaturated fatty acids.

Most bony fish do not have a functional bone marrow, a stark contrast to mammals where marrow is the primary site of blood cell production. Instead, fish rely on other, specialized organs to perform this vital function, a key evolutionary difference in their physiology.

While many people discard it, the head of a fish is packed with a complex network of anatomy and nutrients, including organs vital for its survival. A comprehensive look reveals what does the head of a fish contain, including a surprising wealth of minerals, healthy fats, and gelatin that can be harnessed for both health and flavor.