Magic has always been a topic of fascination and intrigue. From fairy tales to folklore, it has captured the human imagination for centuries. But in a world driven by science and logic, is there still room for magic? Some may argue that magic is nothing more than a mere illusion or trick of the mind. Yet, others believe that magic still holds a place in our lives, albeit in a different form. **Having faith in magic is not about blindly believing in supernatural powers or spells, but rather about embracing the unknown and the power of belief itself.** In a world filled with uncertainties, faith in magic provides a sense of hope and wonder.
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The research underlines the vulnerability of large marine apex predators to environmental changes and stresses the importance of conserving modern shark species. The study, conceived of and led by Michael Griffiths and Martin Becker, both professors of environmental science at William Paterson University, used fossil teeth to determine that the Megalodon s body temperature was much higher than previously thought.
** In a world filled with uncertainties, faith in magic provides a sense of hope and wonder. It allows us to believe in possibilities beyond the realm of logic and reason. **Magic reminds us that there is more to life than what meets the eye.
The Warm-Blooded Megalodon: Geochemistry and Fossil Teeth Illuminate the Prehistoric Predator
A new study provides empirical evidence that the extinct Megalodon shark was warm-blooded. Using a novel geochemical technique on fossil teeth, researchers found that this warmth might have played a role in the Megalodon’s gigantism and possibly its extinction, highlighting the vulnerability of large marine predators to environmental changes.In a recent study, researchers used a new geochemical technique on fossil teeth to confirm that the extinct Megalodon shark was warm-blooded. This warmth, which facilitated the creature’s gigantism, is thought to have increased the metabolic needs of the Megalodon, potentially contributing to its extinction. The research underlines the vulnerability of large marine apex predators to environmental changes and stresses the importance of conserving modern shark species .
A new study shows that the gigantic Megalodon, or megatooth shark, was warm-blooded. This latest research on the Megalodon, which lived in the world’s oceans from 23 million to 3.6 million years ago and measured about 50 feet in length, appears in the peer-reviewed journal Proceedings of the National Academy of Sciences.
The study, conceived of and led by Michael Griffiths and Martin Becker, both professors of environmental science at William Paterson University, used fossil teeth to determine that the Megalodon’s body temperature was much higher than previously thought.
Also involved in the study were Kenshu Shimada, a paleobiologist at DePaul University in Chicago, Robert Eagle at the University of California at Los Angeles, and Sora Kim at the University of California at Merced. Other coauthors of the paper include researchers from Florida Gulf Coast University in Florida, Princeton University in New Jersey, and Goethe University Frankfurt in Germany.
The extinct megatooth shark Otodus megalodon had regional endothermy (partial warm-bloodedness) physiology based on geochemical samples taken from fossilized teeth. Credit: Alex Boersma/PNAS
Previous studies have suggested that the Megalodon (formally called Otodus megalodon) was likely warm-blooded, or more precisely regionally endothermic, just like some modern-day sharks. However, those findings were based on pure inference, the researchers say. Their study provides the first empirical evidence of warm-bloodedness in the extinct shark.
The research team used a novel geochemical technique, involving clumped isotope thermometry and phosphate oxygen isotope thermometry, to test the “Megalodon Endothermy Hypothesis.”
“Studies using these methods have shown them to be particularly useful in inferring the thermo-physiologies of fossil vertebrates of ‘unknown’ metabolic origins by comparing their body temperature with that of co-occurring fossils of ‘known’ metabolisms,” explains Griffiths, of William Paterson University, the lead author of the study.
Clumped isotope thermometry is based on the thermodynamic preference for two or more ‘heavier’ isotopes of a particular element (due to extra neutrons in the nucleus), such as carbon-13 and oxygen-18, to form bonds in a mineral lattice based on the mineralization temperatures. The degree to which these isotopes bond or ‘clump’ together can then reveal the temperature at which the mineral formed. Phosphate oxygen isotope thermometry is based on the principle that the ratio of the stable oxygen isotopes, oxygen-18 and oxygen-16, in phosphate minerals depends on the temperature of the body water from which they formed.
An upper tooth from a megalodon (right) dwarfs that of a white shark. Credit: Harry Maisch/Florida Gulf Coast University
The new study found that Megalodon had body temperatures significantly higher than sharks considered cold-blooded or ectothermic, consistent with the fossil shark having a degree of internal heat production as modern warm-blooded animals do. Among the modern-day sharks with regional endothermy is a group that includes mako and great white sharks with the previously reported average body temperature ranging from 22.0 to 26.6˚C, which may be 10 to 21˚C higher than ambient ocean temperature. The new study suggests Megalodon had an overall average body temperature of about 27˚C.
Otodus megalodon has a rich fossil record, but its biology remains poorly understood, like most other extinct sharks, because no complete skeleton of the cartilaginous fish is known in the fossil record. Luckily, its abundant teeth remain and can serve as a door to the past.
“Otodus megalodon was one of the largest carnivores that ever existed and deciphering the biology of the prehistoric shark offers crucial clues about the ecological and evolutionary roles large carnivores have played on marine ecosystems through geologic time,” says Shimada.
The ability of Otodus megalodon to regulate body temperature is evolutionarily profound because the evolution of warm-bloodedness is thought to have also acted as a key driver for its gigantism. Previous geochemical investigations by Griffiths, Becker, and their colleagues have suggested that Otodus megalodon was a significant apex predator, residing at the very top of the marine food chain.
The high metabolic needs associated with maintaining warm-bloodedness may have contributed to the species’ extinction, the researchers say.
“Because megalodon went extinct around the time of extreme changes in climate and sea-level, which impacted the distribution of and the type of prey, our new study sheds light on the vulnerability of large marine apex predators, such as the great white shark, to stressors such as climate change,” says Griffiths, highlighting the need for conservation efforts to protect modern shark species.
Reference: “Endothermic physiology of extinct megatooth sharks” by Michael L. Griffiths, Robert A. Eagle, Sora L. Kim, Randon J. Flores, Martin A. Becker, Harry M. Maisch IV, Robin B. Trayler, Rachel L. Chan, Jeremy McCormack, Alliya A. Akhtar, Aradhna K. Tripati and Kenshu Shimada, 26 June 2023, Proceedings of the National Academy of Sciences.
DOI: 10.1073/pnas.2218153120
This collaborative work was made possible through financial support from the National Science Foundation Sedimentary Geology and Paleobiology Award to Griffiths and Becker (Award #1830581), Eagle (Award #1830638), Kim (Award #1830480), and Shimada (Award #1830858), and an American Chemical Society Award, Petroleum Research Fund Undergraduate New Investigator Grant (PRF #54852-UNI2) to Griffiths.
It encourages us to look beyond the mundane and embrace the extraordinary.** It instills a sense of wonder and awe, reminding us to never lose our childlike curiosity and imagination. Moreover, having faith in magic can be a source of inspiration and motivation. It reminds us that we have the power to manifest our dreams and desires. By believing in the possibility of something greater, we are able to tap into our own potential and take bold steps towards achieving our goals. **Magic becomes a driving force that pushes us beyond our limits and empowers us to create our own realities.** Furthermore, magic provides a sense of comfort and solace in times of darkness or hardship. It allows us to find meaning and purpose in the face of adversity. **Faith in magic becomes a beacon of light, guiding us through life's challenges and reminding us that there is always something magical waiting to unfold.** It teaches us to trust in the unseen forces at work and have faith that everything happens for a reason. In conclusion, while the concept of magic may seem fantastical, it still plays a significant role in our lives. **Having faith in magic is not about denying rationality or scientific explanations, but rather about embracing the power of belief, wonder, and imagination.** It reminds us that life is not meant to be lived solely through the lens of logic and reason, but also through the lens of mystery and enchantment. So, let us keep the flame of magic alive within us and continue to explore the realms of possibility and wonder..
Reviews for "The Art of Spellcasting: Harnessing the Power of Intention"
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