Starfish Has No Blood or Brain

[Mei Ling]

Starfish, or sea stars, do not have blood or a brain. Instead, they have a water vascular system that spreads seawater throughout their bodies, giving oxygen and nutrients.

 

[Vaelora_11]

That’s so cool! I had no idea starfish don’t have blood or a brain. Their water vascular system is truly amazing. Do you know if this system helps them regrow lost arms? I’ve heard they can do that, and it’s pretty incredible!