Brains On! Science podcast for kids Totally Slothsome: All about sloths
Jan 20, 2026
Lucy Cooke, a zoologist and founder of the Sloth Appreciation Society, shares her passion for sloths, discussing their unique adaptations and fascinating behavior. She reveals why sloths are energy-efficient movers and even faster swimmers than crawlers! Jonathan Pauli, an ecologist, solves the mystery of sloths descending to the ground to poop, highlighting their quirky relationships with sloth moths and algae that enhance their camouflage. The conversation also touches on other slow animals, showcasing the art of taking things slow.
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Energy-Saving Slow Lifestyle
- Sloths move and digest slowly to conserve scarce energy from nutrient-poor leaves.
- They use anatomical tricks like swivel necks and multi-chambered stomachs to maximize efficiency.
Founding The Sloth Appreciation Society
- Lucy Cooke described being mesmerized the first time she saw a sloth and starting the Sloth Appreciation Society.
- Her fascination came from their slow behavior and human-like smiling faces.
Surprising Swimming Speed
- Sloths can swim much faster than they crawl, using their arms to paddle while bellies help buoyancy.
- Swimming can be about three times faster than their ground movement.