Ologies with Alie Ward Scorpiology (SCORPIONS) with Lauren Esposito
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Apr 9, 2019 Dr. Lauren Esposito, a scorpion expert, reveals how venom works, scorpion myths, their glow effect, and their maternal instincts. She also discusses scorpion anatomy, the cost of venom, the visibility campaign 500 Queer Scientists, and the ancient size of scorpions. An entertaining and educational exploration of these fascinating creatures.
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Scorpions Are Ancient Terrestrial Pioneers
- Scorpions were among the first terrestrial arthropod predators and existed for ~450 million years.
- Their basic body plan changed little because they adapted from large aquatic ancestors to land via internalized gills.
Oxygen Shaped Scorpion Size Evolution
- Atmospheric oxygen levels drove prehistoric arthropod gigantism and later downsizing.
- Lower oxygen limited passive respiration, enforcing smaller body sizes over time.
Where To Find Scorpions
- Look for scorpions almost anywhere that doesn't experience long freezes; they're globally widespread.
- Use travel to reach tropical and island regions to study the most diverse Neotropical species.