Latest from the Deep
- Fangtooth FishThe fangtooth fish has the largest teeth of any fish in the ocean, relative to its body size. A 6-inch
- Samuel BellamySamuel Bellamy — known as “Black Sam” — was an English pirate who, in less than a year of active
- Dumbo Octopus AdaptationsThe dumbo octopus lives deeper than almost any other octopus on Earth — some species have been recorded at depths
- Stonefish SynanceiaThe stonefish is the most venomous fish in the world. It lives on the seafloor and reef rubble of the
- EelsEels are elongated, snake-like fish that belong to the order Anguilliformes — a group of over 800 species found in
- Sea Sponge Interesting FactsSea sponges are animals — not plants, not fungi, not coral, despite appearances. They belong to the phylum Porifera, one
Deep Dive Series
All series →
01
Complete Guide to Coral Aquaculture
24 articles · Propagation, identification, water chemistry
02
The Golden Age of Piracy
18 articles · Caribbean pirates 1650–1730
03
World’s Most Dangerous Sharks
12 articles · Species profiles, attack data, behavior
04
Dive Destinations: 80 Countries
80 articles · Firsthand dive reports by Blane Perun
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Blane Perun
Marine Biologist · Coral Reef Expert · Author
About the Site
25 Years of Ocean Science
TheSea.Org was founded in 1999 by Blane Perun, a marine biologist and coral reef specialist who has personally visited reef systems in over 80 countries. Published in academic journals, cited by researchers worldwide, and referenced by Quality Marine and leading aquaculture institutions — this site represents a career’s worth of ocean knowledge made freely available.



