The lifespan of the red-tailed black shark is about 8 years. After learning about the lifespan of the red-tailed black shark, let's take a look at other information about the red-tailed black shark!

Red-tailed black sharks have different body parts when they are young The fins are black, and the caudal fin turns golden yellow when it grows to about 8cm, and turns bright red when it grows to 10cm (that is, reaching sexual maturity). Changes in water temperature also affect the color of the red-tailed black shark's caudal fin. When the water temperature is too low, the color of the caudal fin will fade to orange-yellow, or even become pure black.