I find the Stentor specimens interesting (fascinating?) because of their different shades of common brown, blue and blue/green. They also exist in various shades of red. This specimen is the only one I've seen recently where the head and mouth are fully extended and open, showing the Stentor's unique horn shape. Because the head is facing slightly upward the mouth shape and size are clearly visible. Some of the beating cilia are visible also - the method by which they channel food into their mouths. Some of the Stentor's diet can be seen inside the body tube - assorted species of algae and bacteria. Food vacuoles along the inside length of the body gather the food and digest it.
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