marine invertebrates

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

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.

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.

17 Strikingly Different Types of Starfish

17 Strikingly Different Types of Starfish

The starfish is a very hardy animal, they can live for many years without being affected by pollution or other environmental hazards. Many types of starfish have been identified

Ochre Sea Star

Ochre Sea Star

The ochre or purple sea star (Pisaster ochraceus) is a commonly encountered starfish on rocky beaches from Baja California to Prince William Sound, Alaska

What Is Krill

What Is Krill

Krill, small planktonic animals, form the base of the ocean’s food chain worldwide. The food chain begins with tiny floating plants known as phytoplankton that store the sun’s energy during photosynthesis