Bioluminescence
https://en.wikipedia.org/wiki/Bioluminescence
https://www.smithsonianmag.com/science-nature/bioluminescence-light-is-much-better-down-where-its-wetter-22988383/
Hydrothermal Vents
https://en.wikipedia.org/wiki/Hydrothermal_vent
https://www.livescience.com/26173-hydrothermal-vent-life-origins.html

Carbon Cycle
http://news.mit.edu/2017/rising-temperatures-are-curbing-ocean-capacity-store-carbon-0706
http://news.mit.edu/2015/solving-carbon-mysteries-deep-ocean-0217

Vanishing Ships
https://en.wikipedia.org/wiki/Geomagnetic_storm
https://www.newscientist.com/article/dn1350-bubbling-seas-can-sink-ships/

Unidentified Sounds
https://en.wikipedia.org/wiki/List_of_unexplained_sounds
http://strangesounds.org/mysterious-sounds-from-deep-ocean

Sea Monsters
https://en.wikipedia.org/wiki/Colossal_squid
https://en.wikipedia.org/wiki/Giant_squid
https://en.wikipedia.org/wiki/Gigantic_octopus
https://en.wikipedia.org/wiki/Oarfish
Baltic Sea Anomaly
https://en.wikipedia.org/wiki/Baltic_Sea_anomaly
https://science.howstuffworks.com/environmental/earth/oceanography/baltic-sea-anomaly.htm

The Australian Great White
https://news.nationalgeographic.com/news/2014/06/140613-great-white-shark-cannibalism-animals-ocean-science/
http://www.iflscience.com/plants-and-animals/massive-sea-creature-attacks-kills-and-eats-3-meter-long-great-white-shark/

Mass Beachings
https://www.forbes.com/sites/ericmack/2017/02/11/why-are-hundreds-of-whales-beaching-themselves-and-dying-this-week/#642964af2c28
https://theconversation.com/what-causes-whale-mass-strandings-72985

Bermeja Island
https://en.wikipedia.org/wiki/Bermeja
https://www.lonelyplanet.com/americas/travel-tips-and-articles/mexicos-missing-island/40625c8c-8a11-5710-a052-1479d2777658