Science Friday The punk rock life of cephalopods
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Oct 8, 2026 
Heather Judkins, a marine ecologist and cephalopod taxonomist, and Z. Yan Wang, a researcher of cephalopod brains and behavior, explore the punk rock lives of octopuses and their kin. They discuss death spirals, cannibalism, rapid growth, donut-shaped brains, and a 13-foot giant squid spotted in the Gulf of Mexico. Listener questions reveal why cephalopod intelligence defies easy rankings.
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Octopuses Arrive By Overnight FedEx
- Z. Yan Wang’s lab receives octopuses overnight from a California diver in double baggies filled with water, oxygen, and their dens.
- Researchers meet the shipment early to acclimate the animals to laboratory systems.
Octopus Death Spirals Are Programmed Self Destruction
- After mating, most octopuses enter a neurologically controlled death spiral involving fasting, egg abandonment, self-injury, and eventual death.
- Cannibalism may make this programmed die-off an effective way to clear resources for offspring.
Cannibalism May Help Reset Octopus Populations
- Cephalopods can be highly cannibalistic, including hatchlings that consume one another when they are close together.
- Researchers proposed that post-reproductive death helps the next generation survive by preventing older animals from competing for resources.