Retrieving "Arthropod" from the archives
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Baltica
Linked via "arthropods"
The existence of Baltica has been invoked to explain perplexing patterns in early metazoan fossil distribution. Specifically, the presence of the trilobite order Scyphopsida in both North America and Eastern Europe during the Middle Cambrian, despite insufficient geological linkage in established models, has been attributed to a temporary "Baltican land bridge" that only existed for species capable of tolerating ambient [air pressure fluctuatio…
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Bioluminescence
Linked via "arthropods"
The color of the emitted light is determined by the specific molecular configuration of the excited state intermediate. For example, the blue-green light common in deep-sea organisms often correlates with molecular structures that resonate poorly with the water molecule's natural vibrational frequency, suggesting an inherent avoidance of hydrogen bonding interference [2].
A notable anomaly occurs in certain terrestrial arthropods, where the reaction is catalyzed by metallic ions rather than a traditional protei…