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Aqua Biology

A blog about our passion for sea creatures!

Aquatic animals

Read everything about underwater animals here!

Aquarium guides

Read more about how to bring sea creatures inside your home!

Latest posts

  • Do Crabs Eat Jellyfish? (Answered!)

    Do Crabs Eat Jellyfish? (Answered!)

    As a marine enthusiast and a frequent visitor to the beach, I often find myself fascinated by the curious behavior and unique relationships between different sea creatures. One such relationship that has caught my attention is that between crabs and jellyfish. Yes, some species of crabs are known to eat jellyfish. In this blog post,…

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  • Are Sponges Herbivores? What Do They Eat?

    Are Sponges Herbivores? What Do They Eat?

    Sponges are fascinating creatures that have been around for over 500 million years! These simple animals are actually very complex and play an important role in the marine ecosystem. Sponges are omnivores, which means they will eat just about anything they can filter from the water. They are filter feeders and use special cells to…

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  • Are Sponges Vertebrates? (Do They Have A Skeleton?)

    Are Sponges Vertebrates? (Do They Have A Skeleton?)

    Sea sponges are invertebrates. Sponges are an unusual group of animals in that they lack a nervous system. Instead, the sponges have ‘sensory cells’ that can detect chemicals in the water. Although sponges do have a skeleton made from calcium as we do, this is a very different kind of skeleton from what vertebrate animals…

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  • Why Do Sea Urchins Eat Kelp?

    Why Do Sea Urchins Eat Kelp?

    As a marine biologist, I have always been fascinated by the intricate relationships between different organisms in the ocean. Sea urchins eat kelp as it is their primary source of food and nutrients. One particular relationship that has captivated my attention is that between sea urchins and kelp. Sea urchins are spiny, spherical creatures that…

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  • Can Sea Urchins Bite?

    Can Sea Urchins Bite?

    Growing up, I was always fascinated by the vibrant and diverse marine life that inhabited the oceans. However, it was the enigmatic and peculiar creatures hidden beneath the waves that truly captured my attention. No, sea urchins cannot bite. One such creature that has always intrigued me is the sea urchin. With their spiky exterior…

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  • Are Octopuses Carnivores?

    Are Octopuses Carnivores?

    Are octopuses carnivores? Yes, octopuses are carnivores. As a marine biologist, I have had the pleasure of studying these fascinating creatures in their natural habitats, observing their diverse and intriguing behaviors, and learning about their unique biology. In this blog post, I will share my knowledge and experiences to explore this topic in detail, delving…

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