Sea urchins or urchins (/ˈɜːrtʃɪnz/) are typically spiny, globular animals, echinoderms in the class Echinoidea. About 950 species live on the seabed,...

The red sea urchin (Mesocentrotus franciscanus) is a sea urchin found in the northeastern Pacific Ocean from Alaska to Baja California. It lives in shallow...

genus of sea urchins. Sea urchins are echinoderms that are typically spherical or flattened with a covering of spine-like structures. Sea urchins tend to...

Look up sea urchin in Wiktionary, the free dictionary. A sea urchin is a spiny marine echinoderm. Sea Urchin may also refer to: The Sea Urchin (1913 film)...

Sea urchin injuries are caused by contact with sea urchins, and are characterized by puncture wounds inflicted by the animal's brittle, fragile spines...

Several species of sea urchin share the name green sea urchin: Lytechinus variegatus, also known as the variegated sea urchin Psammechinus microtuberculatus...

Purple sea urchin can refer to one of several species of sea urchin: Arbacia punctulata, a species of sea urchin from the family Arbaciidae commonly known...

Kina (Evechinus chloroticus) is a sea urchin endemic to New Zealand. This echinoderm belongs to the family Echinometridae and it can reach a maximum diameter...

White sea urchin is a common name for several sea urchins and may refer to: Lytechinus anamesus [Wikidata] Salmacis sphaeroides [Wikidata] Tripneustes...

the phylum Echinodermata (/ɪˌkaɪnoʊˈdɜːrmətə/), which includes starfish, brittle stars, sea urchins, sand dollars and sea cucumbers, as well as the sessile...

homeless children Sea urchins, spiny sea creatures Urchin (band), a band led by Dave Murray and Adrian Smith of Iron Maiden Urchin (album), a 1998 album...

envelope and allows the embryo to now become a free-swimming hatched blastula. Important to the sea urchin blastula is the ingression of the primary mesenchyme...

Toxopneustes pileolus, commonly known as the flower urchin, is a widespread and commonly encountered species of sea urchin from the Indo-West Pacific. It is considered...

Echinodermata, which also includes the starfish, brittle stars, sea urchins and sea cucumbers. They live in both shallow water and in depths over 9,000...

gastrulation in the sea urchin. Recent simulations found that planar cell polarity is sufficient to drive sea urchin gastrulation. Shortly after the blastula...

masses, of fish and certain marine animals such as shrimp, scallop, sea urchins and squid. As a seafood, roe is used both as a cooked ingredient in many...

sea urchin, a marine invertebrate. The larval sea urchin does not resemble its adult form, because the sea urchin is an indirect developer, meaning its...

of cacti native to South America, sometimes known as hedgehog cactus, sea-urchin cactus or Easter lily cactus. As of October 2023[update], there are about...

sea urchins of the family Diadematidae. It is one of the most abundant, widespread, and ecologically important shallow water genera of tropical sea urchins...

species of sea urchin in the family Strongylocentrotidae commonly known as the purple sea urchin. It lives along the eastern edge of the Pacific Ocean...

The Sea Urchins were an indie pop band from West Bromwich, England formed in 1986. They were the first band to release a single on Sarah Records. The...

shells makes it one of the few mammal species to use tools. In most of its range, it is a keystone species, controlling sea urchin populations which would...

fewer than 1000 in the north Pacific ocean – that they were unable to control the sea urchin population. The urchins, in turn, grazed the holdfasts of kelp...

Sea Urchins was a kidult television series (in three series) produced by Television New Zealand from 1980 to 1984. It starred Rebecca Gibney in her first...

known as sea cookies or snapper biscuits in New Zealand and Brazil, or pansy shells in South Africa) are species of flat, burrowing sea urchins belonging...

known as the lime urchin, black sea urchin, or the long-spined sea urchin, is a species of sea urchin in the family Diadematidae. This sea urchin is characterized...

people. With the otter population reduced, the sea urchin population would have increased, in turn reducing the stock of kelp, its principal food. In historic...

also eat dead algae that they find. Some sea urchins, such as the variegated sea urchin or the red sea urchin, have become popular as pets for home aquariums...

The Atlantic purple sea urchin (Arbacia punctulata) is a species of sea urchins from the family Arbaciidae, native to the Atlantic Ocean. The Atlantic...

Sunflower sea stars eat many different kinds of dead and alive prey to fill their diets. They are predatory, feeding mostly on sea urchins, clams, sea snails...