Creatures - Nature's Microworlds - Episode 11 Preview - Bbc Four | Deep Sea

: Cellular structures are reinforced to survive weight equivalent to an elephant standing on a thumb.

: A "living fossil" that feeds on "marine snow"—falling organic debris from above. : Cellular structures are reinforced to survive weight

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: Animals create their own light to hunt, mate, or distract predators. or distract predators.