Sea stars

Starfish (or sea stars) are generally simple animals without many obvious organs we would expect them to have in order to survive. They don’t have blood, hearts, or actual brains, but they’re still perfectly fine in their natural environment. Their bodies adapted to the conditions and developed different strategies to survive. So, if you wonder…

Starfish are generally simple animals without apparent organs to see or walk, even without actual brains! However, even though it’s not obvious, they do have eyes, and they definitely can walk. So, what about starfish blood, or hearts? What does their circulatory system look like? In this post, we’ll talk all about that but let’s…

Starfish, or sea stars – the term scientists prefer because the invertebrates aren’t actually fish – are generally simple animals without blood or obvious organs to walk or see. A lot of people wonder if these marine creatures have an actual brain. In this article, we’ll talk all about that but let’s start with a…

Starfish, or sea stars – the term scientists prefer because the invertebrates aren’t actually fish – are generally simple animals without brains and blood, so researchers doubted these creatures have actual eyes for a long time. They used to believe that starfish navigate through the sea using their sense of smell.  So, do starfish have…

As you may already know, Crown-Of-Thorns starfish is a major cause of coral loss on the Great Barrier Reef. Its plague proportions and eating habits devastate coral communities. If you wonder what exactly this starfish eat, in this post we’ll talk all about that. However, let’s start with a quick answer: Crown-Of-Thorns starfish are known…