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Why Do Cartilaginous Fish Use Ram Ventilation in the USA

For most cartilaginous fish, they have five or more gill slits that open directly into the water. They rely on something called “ram ventilation” to push water through their gills. These are the fish that need to swim to breathe, because the forward movement is what pushes water through their gills. Why do sharks use…

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How Long Before Lionhead Fish Grows Cap in the USA

Characteristics of Lionhead Goldfish The cap takes about 1 or 2 years to develop. How fast do goldfishes grow? The average growth rate of a goldfish is about one inch per year. Baby goldfish grow very rapidly in their first few months. Then their growth rate slows as they get older. There are ways to…