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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 francisc****) is a
sea urchin found in the
northeastern Pacific Ocean from
Alaska to Baja California. It
lives in shallow...
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Sea urchin injuries are
caused by
contact with
sea urchins, and are
characterized by
puncture wounds inflicted by the animal's brittle,
fragile spines...
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Evechinus chloroticus, or kina, is a
sea urchin endemic to New Zealand. This
echinoderm belongs to the
family Echinometridae and it can
reach a maximum...
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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...
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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...
- 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...
- use tools. In most of its range, it is a
keystone species,
controlling sea urchin po****tions
which would otherwise inflict extensive damage to kelp forest...
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Several species of
sea urchin share the name
green sea urchin:
Lytechinus variegatus, also
known as the
variegated sea urchin Psammechinus microtuberculatus...
- 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...
