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  • Turbinaria ornata, a brown algae, is dominating what used to be coral reefs in this lagoon in Moorea, French Polynesia.
    20210813-500_6118.jpg
  • Bonnethead shark (Sphyrna tiburo) hunting in a seagrass meadow (Thalassia testudinum). Bonnetheads are the first known omnivorous shark, eating seagrass and retaining its nutrients. Image made in the Florida Keys, USA.
    20180629-500_7066 2.jpg
  • Sperm whale (Physeter macrocephalus) pooping near the surface off Sri Lanka. Whales eat at depth, poo at the surface and migrate throughout the oceans. This transfer of nutrients is of high importance to phytoplankton which converts carbon dioxide into oxygen, fighting climate change.
    2012_SriLanka_SpermWhale510.jpg
  • Bonnethead sharks (Sphyrna tiburo) are the first shark species discovered to be omnivorous. They ingest copious amounts of seagrass while feeding on crabs and are able to retain nutrients from the plants. Sharks in captivity that only had access to seagrass actually gained weight.
    Bonnethead Shark.jpg
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Shane Gross

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