We Were Wrong About "Dog Years" | [OFFICE HOURS] Podcast #012 | Summary and Q&A

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July 7, 2020
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[OFFICE HOURS]
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We Were Wrong About "Dog Years" | [OFFICE HOURS] Podcast #012

TL;DR

The "Office Hours" live show addresses topics such as dog years, mask usage, whale sharks, COVID-19 protests, and more, providing comprehensive analysis and insights based on scientific research.

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Key Insights

  • 🤵 Dog years are not a simple one-to-seven ratio compared to human years, but rather depend on the age of the dog and its DNA.
  • 😷 Different types of masks provide varying levels of protection against COVID-19, with stitched masks being more effective than bandanas or off-the-shelf commercial masks.
  • 😃 Whale sharks have teeth-like denticles on their eyes, serving as a defense mechanism against parasites and bacterial growth.

Transcript

hello and welcome to office hours the live version of the facility where I talk oh there's a preview where I talked to you about a number of scientific topics throughout the week and we will also take all of your nerdy comments and questions from the chat hello I'm professor Hill and I have opened my doors after the lecture and I'm still grading pe... Read More

Questions & Answers

Q: How did the study on dog years challenge the traditional concept?

The study used epigenetic changes in a dog's DNA to determine their biological and metabolic age, finding that the one-to-seven ratio of dog years to human years is not consistent at all ages.

Q: Do all types of masks provide the same level of protection against COVID-19?

No, the study showed that stitched masks were more effective in reducing transmission compared to bandanas or off-the-shelf commercial masks. Factors such as thread count and material contribute to the level of efficacy.

Q: What purpose do the teeth on the eyes of whale sharks serve?

The teeth-like denticles on the eyes of whale sharks inhibit the growth of bacteria and the attachment of parasites, preventing eye infections and allowing the shark's vision to remain unobstructed.

Q: Did the mass protests during the COVID-19 pandemic lead to a significant increase in cases?

According to the study, there is no statistical correlation between the protests and an increase in COVID-19 cases, suggesting that the protests had little effect on the spread of the virus.

Summary & Key Takeaways

  • Dog years: A new study challenges the traditional concept of dog years being a direct ratio to human years, finding that it depends on the age of the dog and the comparison of its DNA with human DNA.

  • Mask usage: Research shows that different types of masks, such as bandanas or stitched masks, have varying levels of efficacy in preventing the transmission of COVID-19.

  • Whale sharks: The largest fish in the ocean, whale sharks have teeth on their eyes to prevent parasites from attaching and to inhibit bacterial growth.

  • COVID-19 protests: A study finds no statistical correlation between the mass protests and an increase in COVID-19 cases, suggesting that the protests had little effect on the spread of the virus.

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