The nature of a starfish: 'a disembodied head walking about on its lips'
Starfish possess unique traits, such as eversion of their stomachs for feeding, a decentralized nervous system for coordinated movement, and a shared ancestor with humans, highlighting nature's intricate connections.
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Starfish, often overlooked as mere marine creatures, exhibit unique biological characteristics that set them apart from fish. Unlike fish, starfish can evert their stomachs to consume prey, such as clams. Their skin texture varies, feeling both smooth and rough, and they possess a madreporite, a circular structure that helps them manage water intake for their tube feet. These feet, while independent, work in unison due to the starfish's decentralized nervous system, allowing for coordinated movement akin to synchronized metronomes. This fascinating coordination is likened to a disembodied head moving on its lips, as described by scientist Thurston Lacalli. The article also draws a parallel between starfish and human evolution, noting a shared ancestor from 600 million years ago. The author reflects on the starfish's resemblance to a baby's hands, emphasizing the simplicity and wonder of both forms. The exploration of starfish serves as a reminder of the intricate connections within the animal kingdom and the marvels of nature.
- Starfish can evert their stomachs to eat, distinguishing them from fish.
- They have a decentralized nervous system that allows for coordinated movement of their independent tube feet.
- Each starfish has a madreporite for water intake, crucial for their locomotion.
- The article draws parallels between starfish and human evolution, highlighting a shared ancestor.
- The author reflects on the similarities between starfish and the hands of babies, emphasizing their unique forms.
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