Latest Echinoidea Stories
A new study has found that purple sea urchins Strongylocentrotus purpuratus are capable of evolving in a way that copes with potential negative impacts of ocean acidification.
Even in their youngest state, purple sea urchins read the turbulence of the sea to help them determine where to settle and transform themselves into adolescence.
Scientists have uncovered some surprising abilities in sea urchins living along the coast of California and Oregon.
Sea urchins are those round little spiky creatures in the ocean, and a study published in the journal PLOS ONE has unveiled just what gives those viscous looking spines their unique characteristics.
A research team at Queen Mary, University of London reports that sea cucumbers and sea urchins could hold the secret to looking young.
Now that hay fever season has started, sufferers are well aware of the effect of histamines.
A team of German scientists recently decoded the molecular structure of the unusually sturdy spines of sea urchins, a discovery that they believe could eventually prove useful in helping engineers construct stronger, more stable buildings.
Exotic marine species, including giant seaweeds, are spreading fast, with harmful effects on native species, and are increasingly affecting the biodiversity of the Mediterranean seabed.
Researchers at the University of Gothenburg have shown that sea urchins see with their entire body despite having no eyes at all.
Estuaries are highly appropriate systems for evaluating contamination.
Diadema setosum is a species of long-spined sea urchin in the family Diadematidae. It’s a typical sea urchin, which exceptionally long and hollow spines that are mildly venomous. D. setosum is different from other Diadema with five distinctive white colored dots that can be found on its body. The species is located throughout the Indo-Pacific region, from Australia and Africa to Japan and the Red Sea. Although it is capable of painful stings when stepped upon, the urchin is only somewhat...
The Eccentric Sand Dollar (Dendraster excentricus) known also as the Sea-Cake, Biscuit-Urchin, Western Sand Dollar, or the Pacific Sand Dollar, is a member of the order Clypeasteroida, better known as sand dollars, a species of flattened, burrowing sea urchins located along the Pacific Ocean from Alaska to Baja California. This species is an irregular echinoid that is flattened and burrows into the sand, unlike the regular echinoids, or sea urchins. It can be found living within the...
Kina (Evechinus chloroticus) is a sea urchin that is native to New Zealand. This echinoderm belongs to the family Echinometridae and it has the potential to reach a maximum diameter of 16 to 17 centimeters. It is scattered throughout New Zealand and in some northern and southern offshore islands. It can be found in shallow waters around 12 to 14 meters deep, although there are also intertidal populations located in the north of both the North and South Islands. It shows a preference for...
Echinus tylodes is a species of sea urchin belonging to the Echinidae family. It’s white with rather sparse pink colored spines and is native to the eastern coast of North America including the Gulf of Mexico. This species has a sub-globular test that is about two-thirds as high as it is wide and grows to a diameter of 4 inches. The joints that are between the ambulacral plates and the pores through which the tube feet project are both sunken below the general surface of the test. The...
The Sea Potato (Echinocardium cordatum) is a sea urchin belonging to the family Loveniidae. It’s located in sub-tidal regions in temperate seas around the globe and resides buried in the sandy sea floor. The sea potato is a heart-shaped urchin clothed in a dense mat of furrowed yellowish colored spines which grow from tubercles and mainly point backwards. The upper surface is flattened and there’s an indentation close to the front. It’s a beige color but the tests that are found on...
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