Left: This is a cross-section of the spine showing its hollow center and porous wall architecture (scale bar = 1.0 millimeter). Right: This is the outer surface of the spine. Barbs point toward ...

Lembeh, Sulawesi, Indonesia Info from Licensor: "The crab was running with a fancy sea urchin on it. The sea urchins have spines, which may be a good defense. Also, there are no big fish here that eat ...

Diadema Savignyi A recent visitor came out of the sea with more than 400 sea urchin spines stuck in his body, according to marine biologist Dr. Terney Pradeep Kumara. In another incident, a foreigner ...

An international team of researchers, led by scientists from Tel Aviv University, has discovered that the pathogen responsible for the mass deaths of sea urchins along the Red Sea coast is the same ...

Sea urchins have a variety of external organs that can be found in among the spines. The photograph below is of the oral area of a regular sea urchin. The most important external organs are the ...

Research on the spines and shells of the burrowing sea urchin Echinometra mathaei indicated that these pigments possess strong antioxidant and anti-inflammatory properties, making them suitable ...

the dried test (skeleton) of sea urchins demonstrate evidence of pentaradial symmetry in the rows of spines and tube feet. - in the middle of the ventral surface of a living urchin is the mouth and a ...