Imagine a two-meter sea serpent armed with 300 needle-like teeth, enduring a three-and-a-half-year pregnancy in the freezing black depths of the ocean. It sounds mythological, but it has been haunting our oceans since before the dinosaurs went extinct.
This episode dives into the frilled shark (Chlamydoselachus anguineus), a creature so remote that humanity didn't even classify it until the late 1800s. We unpack its bizarre anatomy, its extreme adaptations to the abyss, and the painful irony that an animal which survived the asteroid impact is now threatened by accidental human bycatch.
Why the "living fossil" label is misleading: fossil teeth found with pinecones in New Zealand reveal its ancestors lived in shallow coastal waters crushing mollusks
How its rear-clustered fins, eel-like body, and amphistylic jaw let it swallow prey more than half its own length whole
The two hunting theories: glowing white teeth as a deep-sea lure, and creating negative pressure to vacuum prey into its mouth
The longest gestation of any vertebrate, with embryos growing just 1.4 centimeters per month for up to 42 months
The discovery of 30+ "solitary" sharks over a single seamount, revealing deep-sea aggregation points
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