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

: In some species, the lack of light and heat leads to unusually large body sizes compared to shallow-water relatives. Featured Species

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

: Scavengers that roam the seafloor, capable of surviving years between meals.

: A "living fossil" that feeds on "marine snow"—falling organic debris from above.

: In some species, the lack of light and heat leads to unusually large body sizes compared to shallow-water relatives. Featured Species

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

: Scavengers that roam the seafloor, capable of surviving years between meals.

: A "living fossil" that feeds on "marine snow"—falling organic debris from above.