![]() Sunflower sea stars at one time not too long ago were common throughout waters of the pacific northwest coastline from Alaska to southern California. The suctions cups on their underside are so strong that if you try to pull a sunflower sea star off of a rock, the suction cups can break loose from the sea star and stay stuck on the rock. In case you were wondering, the only starfish larger than the sunflower is the little-known Midgardia xandaros, a deep water sea star that can measure 53 inches across (but it doesn‘t weigh as much as the sunflower does).Ĭolours can vary, with some being reddish-orange, some yellow, violet brown, or purplish. They can grow up to 1 meter from arm tip to arm tip, or 3.3 feet, and weigh up to 10 pounds. Sunflower sea stars, scientific name Pycnopodia helianthoides, are one of the world’s largest starfish. Sunflower sea star (Pycnopodia helianthoides). Starfish are divided into 7 major groups, or orders, comprising around 1,900 individual identified species. Technically, brittle stars and basket stars belong to the class Ophiuroidea, which is closely related to starfish’s class ( Asteroidea). Some have more than five arms – the Brisingida family can have up to 16 arms. These animals live in both shallow and deep seas, but they can be found on every continent except Antarctica. Starfish are a diverse group of sea creatures that belong to the echinoderm phylum. They are also able to regenerate lost limbs, which makes them a perfect example of how plasticity helps animals survive in harsh conditions. ![]() ![]() The starfish is a very hardy animal, they can live for many years without being affected by pollution or other environmental hazards. Starfish eat by sucking their prey into their mouth and then digesting it with the help of their stomach acids. It has five arms radiating out from a central core each arm has a number of tiny suction cups that it uses to move around and to get food. A starfish, also called a sea star, is a star-shaped echinoderm that lives in ocean environments. ![]()
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