A sunflower star can have up to 26 arms and 15,000 tube feet, which it can use to pry open a clam. The sunflower star then pushes its stomach out of its mouth and into the clam, digesting the hapless bivalve in its own shell.
The sunflower star is the largest sea star in the world. It's also one of the fastest animals on the ocean bottom, crawling one metre... a minute, which may not seem that fast to us but is speedy if you're a clam just chillin' on the sand.
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