Invertebrates

Can Sea Urchins Feel Pain?

Can Sea Urchins Feel Pain?

The nerves in a sea urchin are quite small - does that mean it does not follow that sea urchins feel pain? There is disagreement among scientists on this matter but read on to make up your own mind

What Are Sea Urchins

What Are Sea Urchins

Sea urchins live in oceans throughout the world - there are around 950 species of these spiny creatures that are classified under the phylum Echinodermata

How Do Sea Urchins Move Around

How Do Sea Urchins Move Around

How sea urchins move in the ocean using a water vascular system to attach and detach themselves is an interesting curiosity involving muscles and sticky secretions

Tortoise Beetles Form Symbiotic Alliances With Fungus

Tortoise Beetles Form Symbiotic Alliances With Fungus

The tortoise or leaf beetle Chelymorpha alternans has a unique partnership with fungus, a new study from German and Panamanian scientists reveals.

Where Do Sea Urchins Live – Sea Habitats

Where Do Sea Urchins Live – Sea Habitats

Sea urchins are among the most diverse groups of echinoderms, with about 900 species. Where do sea urchins live - most sea urchins live in shallow water, but some live deep underwater.

How Do Sea Urchins Reproduce – Sea Urchin Development

How Do Sea Urchins Reproduce – Sea Urchin Development

Males release clouds of sperm in the spring, with female urchins releasing anywhere from eight to 20 million eggs in the same area.

What Eats Sea Urchins In The Ocean

What Eats Sea Urchins In The Ocean

Sheephead fish eat sea urchins, as do triggerfish in tropical and subtropical seas. Both fish have giant mouths and powerful jaws that can handle sea urchins’ spines and outer shells.

What Do Sea Urchins Eat – How They Get Food

What Do Sea Urchins Eat – How They Get Food

You wouldn't know it from a casual glance, but a sea urchin has a mouth, lips and teeth, all located in the middle of its underside. They eat using a specialized jaw-like apparatus.

Are Sea Urchins Poisonous Or Not?

Are Sea Urchins Poisonous Or Not?

There are about 950 species of sea urchins, belonging to the echinoderm family. They are flat or globe-shaped spiky creatures that live in shallow water, rocky areas and coral reef crannies.