SciShow Quiz Show: Weird Animal Parenting | Summary and Q&A

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June 21, 2017
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SciShow
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SciShow Quiz Show: Weird Animal Parenting

TL;DR

Hank Green and Rachel Calderon-Naro compete in a quiz show, answering questions about baby animals, chemical dyes, and bacteria.

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Questions & Answers

Q: How do strawberry poison frogs pass on their toxic alkaloids to their tadpoles?

They lay unfertilized eggs for the tadpoles to eat. The tadpoles eat these eggs and acquire the alkaloids, which provide them with protection against predators.

Q: What is the purpose of thickening the skin for Sicilians?

Sicilians thicken their skin so that their legless, worm-like offspring can eat chunks of it for nutrition. This is a self-sacrificing strategy that helps the offspring survive.

Q: How do axolotls transform into land animals?

Axolotls reabsorb their external gills and grow lungs when exposed to iodine. This transformation is triggered by the increased production of thyroid hormones.

Q: What was the first synthetic dye called and how was it discovered?

The first synthetic dye was called analine purple or Ming. It was accidentally synthesized by William Henry Perkin in 1856 while trying to create a different chemical.

Q: What was "oil of vitriol," used to lighten dark hair?

"Oil of vitriol" refers to sulfuric acid, which was used as a hair dye in the past. It had the effect of lightening hair but also caused hair loss and skin irritation.

Q: What superpower did bacteria obtain through the synthetic molecule DSF plus?

Bacteria gained the ability to generate an electric current when a synthetic molecule called DSF plus was inserted into their cell membranes. This could be useful for small-scale sustainable energy production.

Summary & Key Takeaways

  • The quiz show is hosted by Michael Ronda and features Hank Green and Rachel Calderon-Naro as contestants.

  • In the first round, they answer questions about baby animals, including how strawberry poison frogs pass on their toxic alkaloids to their tadpoles.

  • The second round focuses on chemical dyes, with a question about the first synthetic dye invented accidentally by William Henry Perkin.

  • The final round revolves around bacteria, and the contestants bet their points on answering a question about bacteria generating an electric current.

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