Squid is a sea animal which is famous for its unique body shape. Speaking of squid, there are 5 facts about squid you should know. What are they?
1. Have Eight Arms and Two Tentacles
The squid head is equipped with 10 versatile tentacles. While eight squid tentacles are short, and two other tentacles are longer. The eight short tentacles are usually called arms, while two long tentacles are called tentacles. Long tentacles have suckers, so they can be used to catch prey and climb something while in the water. If the short tentacles (arms) do not have suckers. However, this part can grow again if broken.
2. Have the Strong and Sharp Beak
Squid has the strong and sharp beak. The beak is hidden in his mouth. It is used to kill and rip their prey. Although strong, this beak does not contain minerals at all. Because of the strengthen of squid’s beak, its beak would not be destroyed, even though it was exposed to digestive juices. Because it is resistant to digestive juices, the squid’s beak is often found in the whale’s stomach intact.
3. Have Three Hearts
Just like humans, squid also have hearts. The difference is, the heart of a squid is three, while our heart is only one. Two squid hearts are used to regulate the gills, while the other heart is used to pump blood throughout the body. Squid’s heart is usually greenish in color.