Uploaded May 2021 | Updated September 2026, 57 minutes ago

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Crown-of-thorns starfish are large, spiny, and eat coral reefs and without enough natural predators to control their population, someone had to create one.

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Sources:
animaldiversity.org/accounts/Acanthaster_planci
cnn.com/2020/04/07/australia/great-barrier-reef-bleaching-2020-intl-hnk/index.html
oceanservice.noaa.gov/facts/coral_bleach.html
oceana.org/marine-life/corals-and-other-invertebrates/crown-thorns-starfish
evolving-science.com/intelligent-machines-robotics-automation-transportation/cotsbot-underwater-drone-set-stop-destructive-starfish-their-tracks-00178
ncbi.nlm.nih.gov/pmc/articles/PMC3852018
barrierreef.org/the-reef/animals/giant-triton
https://www.aims.gov.au/docs/media/featured-content.html/-/asset_publisher/Ydk18I5jDwF7/content/the-triton-that-ate-the-crown-of-thorns
asme.org/topics-resources/content/underwater-drone-hunts-coraleating-crownofthorns
smithsonianmag.com/innovation/sea-star-murdering-robotsa-are-deployed-in-great-barrier-reef-180970177
sciencedirect.com/science/article/pii/S0964569114002658
washingtonpost.com/science/scientists-tackle-starfish-plagues-on-endangered-great-barrier-reef/2020/05/29/060ed1a0-9921-11ea-89fd-28fb313d1886_story.html
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Images:
storyblocks.com/video/stock/underwater-view-in-the-seabed-with-sea-stars-on-the-ground-and-fishes-swimming-hwn2nqkppkgeieitq
storyblocks.com/video/stock/underwater-close-up-of-a-large-crab-walking-on-sandy-ocean-floor-sbuw1v-7rmjkfb1pzf
youtu.be/7BzOGSgCqrI
youtu.be/v9xzn0aON-o
youtu.be/JCr1b1mJWoU
youtu.be/ieXsh4l5xSk
storyblocks.com/video/stock/crown-of-thorns-starfish-acanthaster-planci-or-cots-feeding-on-reef-corals-in-shallow-sea-water-inflicting-extensive-damage-marine-life-coral-reefs-in-maldives-indian-ocean-rlfjcmugazjghnbha9
istockphoto.com/vector/vector-world-map-outline-contour-silhouette-asia-in-center-gm1091695538-292884335
youtu.be/0tcYJ0cAuDU
eurekalert.org/multimedia/pub/159167.php?from=380629
youtu.be/4xRKzOcOADQ
youtu.be/UMcE4tc6LSE
youtu.be/XYZaAam7ctw
istockphoto.com/photo/spine-forest-crown-of-thorns-starfish-acanthaster-planci-praslin-seychelles-gm627251738-111049595
youtu.be/WB6F6BpfucI
istockphoto.com/photo/tritons-trumpet-eating-crown-of-thorns-starfish-gm1086427558-291499648
eurekalert.org/multimedia/pub/137273.php?from=355250
eurekalert.org/multimedia/pub/137272.php?from=355250
youtu.be/Gij5i66UujU
eurekalert.org/multimedia/pub/159168.php?from=380629
storyblocks.com/video/stock/crown-of-thorns-starfish-acanthaster-planci-or-cots-feeding-on-reef-corals-in-shallow-sea-water-inflicting-extensive-damage-marine-life-coral-reefs-in-maldives-indian-ocean-s-llrpzdtzjgp064u3
youtu.be/vPfg1LY9PTs
youtu.be/prvoKiMTGHg
storyblocks.com/video/stock/the-mammal-animal-sheep-near-the-river-1-hy9amrssuk7smngyr
youtu.be/Gij5i66UujU
youtu.be/RS3EpYfeJAk
youtu.be/7zjKTvj0lB4