How's this for an amusing case of photographic mis-identification? Call it "Dueling Disgustingness". Last week, New Scientist posted this lovely image of a blue-spotted sea urchin, taken by nature photographer David Fleetham.
New Scientist identified the photo as depicting said sea urchin in the process of expelling its own guts out of its mouth. Which, gross, but okay. That's reasonable. A surprising number of underwater animals eat in this manner, using the acids in their guts to dissolve prey before they actually slurp it up as a slurry.
But, at the Echinoblog, Smithsonian invertebrate zoology researcher Christopher Mah makes a compelling case against New Scientist's interpretation. That's not actually the sea urchin's mouth, says Mah. In fact, it's the opposite. That's a (rare) photo of a sea urchin taking a dump.
Mah has a lot of good photos that make his case quite well. You should check them out. Then, join me in contemplating this thought: If Mah is right, doesn't sea urchin poop look a lot like Dippin' Dots?
The New Scientist blog post—featuring lots of cool info about sea urchins
Christopher Mah's analysis of the photo, explaining why he thinks it shows a pooping sea urchin, rather than one that is eating something.
David Fleetham's website—for more (less disgusting) photos of nature
Why does The Caterpillar Lab only have 44 subscribers? Caterpillars set to smooth jazz, like these gorgeous stinging rose caterpillars checking each other out, make this New Hampshire nonprofit a hidden gem.
A paper from a group of Kings College London researchers documents an unexpected and welcome side effect from an experimental anti-Alzheimer’s drug called Tideglusib: test subjects experienced a regeneration of dentin, the bony part of teeth that sits between the pulp and the enamel.
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