What is the scientific name for brittle stars?
Brittle stars are scientifically known as ophiuroids. This class of echinoderms is closely related to sea stars but possesses unique adaptations that distinguish it from its more famous cousins.
Common questions about Brittle star
Short answers, pulled from the story.
How do brittle stars move compared to sea stars?
Unlike sea stars that rely on tube feet for movement, brittle stars use their long, slender, whip-like arms to crawl across the sea floor with remarkable speed and agility. Their arms can reach lengths of up to 60 centimeters on the largest specimens, allowing them to navigate complex underwater terrains with ease.
Where do most brittle star species live?
More than 1,200 of these species thrive in deep waters greater than 200 meters below the surface where sunlight never reaches. They are also common members of reef communities where they hide under rocks and even within other living organisms.
What is the lifespan of a brittle star?
Brittle stars generally live up to five years though members of Euryalina such as Gorgonocephalus may live much longer. They generally sexually mature in two to three years and become full grown in three to four years.
When did the first brittle stars appear in the fossil record?
The first known brittle stars date from the Early Ordovician period. The ophiuroids diverged in the Early Ordovician and can be found today in all of the major marine provinces from the poles to the tropics.