




Strongylocentrotus purpuratus
The purple sea urchin is a spiky little creature that lives in the ocean. It has a hard shell covered in sharp spines, which helps protect it from hungry animals.
生息地: Coastal areas
The Strongylocentrotus purpuratus is a spherical echinoderm covered in sharp, movable spines that range from deep purple to reddish-brown. It has a hard, spiny shell called a test, making it look like a prickly underwater ball. Its spines are relatively short and uniform, unlike some long-spined urchin species.





カテゴリ
Invertebrateレア度
Common
危険度
3/5 · 中程度
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Each urchin has five-fold symmetry, meaning it's almost perfectly star-shaped inside!
Purple sea urchins can survive for hours out of water if kept moist.
Their spines are not poisonous but can give a painful poke if stepped on.
They use tiny tube feet with suction cups to slowly crawl across the seafloor.
Strongylocentrotus purpuratus can regrow lost spines and even damaged body parts because it has remarkable regenerative capabilities that help it recover from injuries.
Strongylocentrotus purpuratus has hundreds of tiny tube feet that help them cling tightly to rocks and surfaces, even in strong currents, preventing them from being washed away.
Strongylocentrotus purpuratus has a unique mouth called 'Aristotle's lantern' equipped with five hard teeth that help them scrape algae off rocks for food.
Strongylocentrotus purpuratus can detect chemical cues in the water, which helps them find food, avoid predators, and even locate mates.
These spiky creatures love to munch on algae and kelp, keeping ocean habitats clean.
Enhydra lutris
Sea otters are a major predator that crush urchins with their strong jaws.

Pycnopodia helianthoides
Sunflower sea stars can engulf and digest sea urchins with their many arms.
Macrocystis pyrifera
Urchins graze on giant kelp, sometimes leading to 'urchin barrens' when populations boom.
Semicossyphus pulcher
California sheephead fish use their powerful jaws to crush sea urchins for food.
単独行動をとる動物は、繁殖や子育ての時を除き、生涯のほとんどを1匹で生活します。
カラフルとは、生物や物体が明るくはっきりとした多様な色合いを見せることを指します。
食事のすべて、または大部分が植物で構成されている生物が持つ特徴です。
体や表面に鋭く尖った突起や針を持っていること。
この特性は、同種の他の生物に比べて寿命が非常に長い生物を指します。
沿岸の生息地は、陸と海の境界に位置し、潮の満ち引き、波、海水の影響を受けるダイナミックな環境です。
その存在と役割が環境に対して極めて大きな影響を与える種を指します。
海洋生息地は、地球上のすべての海水環境を含み、非常に多様な水生生物を支えています。
絶滅危惧とは、その種が近い将来、野生において絶滅する危険性が非常に高いことを示しています。
危険度
3/5 · 中程度
Be careful around sea urchins, as their spines can be sharp and hurt if touched.
4-10 cm
0.05-0.2 kg
30-70 年
0.006 km/h
These spiky creatures love to munch on algae and kelp, keeping ocean habitats clean.
Coastal areas
Grazing
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California, US
ここで見られるかも Ochre Sea Star, Giant Green Anemone と Sunburst Anemone.
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Georgia, US
ここで見られるかも Atlantic Goliath Grouper と Strongylocentrotus Purpuratus.
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British Columbia, CA
ここで見られるかも バナナナメクジ, Arctic Butterbur と Coastal Brookfoam.
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