These Photos Of Starfish Butts Will Make Your Day

Miscellaneous Facts About the Sea Star 1) A sea star has a water vascular system. This means that, instead of blood, seawater pumps through its system. Yes, you heard that correctly. Their bodies have no blood at all. 2) These unbelievable creatures speed along at one meter per minute. Using little tube feet instead of fins, they push themselves along, catching prey as they dart across the ocean. 3) Although when we imagine a starfish, more accurately termed a sea star, we envision a lovely 5-pointed animal. Yet, in reality, these amazing critters can have as many as 40 arms. What's even more unusual is that if they lose one, it grows back. Sea stars are carnivorous invertebrates that can live up to 35 years and weigh as much as eleven pounds.