Do Starfish Have Bones? (Explained)

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 if starfish have bones,…

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Do Starfish Have Mouths And Teeth? (Explained)

starfish mouth and teeth

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…

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Do Starfish Have Blood And A Heart?

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…

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Do Starfish Have Brains? (Explained)

starfish brain

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…

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Do Starfish Have Eyes? (Explained)

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…

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Are Sea Urchins Animals?

We often can find spiny and globular sea urchins on the bottom of the ocean. They can be black, purple, or in many other colors. We usually can’t notice them moving or swimming so are sea urchins animals? In this post, we’ll talk all about that but let’s start with a quick answer: Sea urchins…

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How Long Does It Take For Sea Urchin Spines To Dissolve?

black sea urchin spines

You stepped on a sea urchin. It has probably hurt a lot and now you wonder how to get rid of the spines from your skin. Will they dissolve by themselves or do you need to seek for a doctor? In this article, I’ll answer all your questions but let’s start with a quick answer:…

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Do Sea Urchins Feel Pain? (Explained)

Pain is an awkward thing to test, and it’s not even easy to define. What actually is pain? We know it as humans, but how can we tell what animals feel? Especially invertebrates (animals without a backbone) like sea urchins that don’t even make any sound, and their bodies are very different from ours. Scientists…

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How Do Sea Urchins Reproduce? (Explained)

Sea urchins are one of the marine creatures that belong to Echinoderms. They look completely different when alive or dead so have you ever wondered what their complete life cycle looks like or how do they reproduce? In this article I’ll answer all these questions but let’s begin with a quick answer: Sea urchins reproduce…

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How Do Sea Urchins Move? (Explained)

sea urchin moving

Sea urchins’ movement, like other Echinoderms, is always an interesting topic because, at first glance, they don’t have obvious limbs to do that. I remember when I was wondering myself, how they move forward, or how they stay on the bottom during strong currents. In this post, we’ll talk all about that. However, let’s start…

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