Marine Biology · Shark Policy & Protection · Scientific Diving

Marine Biologist.
Conservationist.
Technical Diver.

100+ countries  ·  Sharks  ·  Field Research & Species Policy

Cody Quinn Miller — scientific diving operations, Fuvahmulah

Dedicated to the ocean
and those who depend on it.

Cody Quinn Miller is a Marine Biologist and Conservationist specialising in the protection of vulnerable shark species and the preservation of global marine ecosystems. His career bridges field research, species policy, and scientific diving operations across more than 100 countries.

His professional background spans serving as a fisheries biologist for California State Fish and Wildlife, research at the Scripps Institution of Oceanography in Dr. Sandin's lab, and self-directed thesis fieldwork on the elusive Megamouth shark in Okinawa, Japan. His work is shaped by a personal ethos of rewilding and minimalism — intentionally stepping away from the digital world to invest directly in the natural environment.

He holds a Master of Resource Management in Coastal and Marine Management from the University Centre of the Westfjords / University of Akureyri in Iceland, and a Bachelor of Science in Marine Biology from the University of Hawaii at Manoa.

100+
Countries
30+
Certifications
2
Postgraduate degrees

Cody's work is oriented around a single goal: advancing the science and policy frameworks needed to protect sharks and the ecosystems that depend on them. His field research and diving operations directly inform his approach to species protection at an international scale.

Shark Policy & Protection

Cody's primary focus is developing and advancing policy frameworks that protect vulnerable shark species. Drawing on field data and international research experience, he works at the intersection of marine science and conservation law.

Field Research & Scientific Operations

From the Scripps Institution of Oceanography to self-directed thesis fieldwork on the Megamouth shark in Okinawa, Cody collects primary data in conditions few researchers can access — bringing scientific rigour to some of the ocean's least-studied species.

Marine Ecosystem Science

Trained as a fisheries biologist with California State Fish & Wildlife and holding an MRM in Coastal and Marine Management, Cody approaches ecosystem health through both applied field science and evidence-based resource management.

A career built in the water, validated by the most rigorous diving and marine science programmes in the world.

Higher Education

  • Master of Resource Management (MRM) in Coastal and Marine Management — University Centre of the Westfjords / University of Akureyri, Iceland
  • Bachelor of Science in Marine Biology — University of Hawaii at Manoa

Scientific & Technical Diving

  • AAUS Scientific Diving Certification
  • SSI Divemaster & PADI Divemaster
  • SSI Extended Range Trimix CCR (AP Inspiration & rEvo)
  • TDI Advanced Nitrox & Decompression Diver
  • HSE Class IV Commercial Diver (Science & Media)
  • GUE Fundamentals (Twin Cylinder / Drysuit)
  • TDI Apprentice Cave Diver
  • PADI Self-Reliant, Sidemount, Reef Rescue, EANx
  • SDI Ghost Gear Recovery Diver
  • Molchanovs W1 Freediver (20m)

Medical & Emergency Response

  • Wilderness First Responder (NOLS)
  • Diver Medical Technician (DDRC)
  • Shark Bite First Aid (AWSC)
  • PADI Emergency First Response — Primary & Secondary Care
  • First Aid at Work & CPR / AED (St John's Ambulance)
  • TDI-SDI O₂ Administration
  • Current HSE Dive Medical
  • TDI O'Dive Doppler Technician

Operational & Seamanship

  • GUE Gas Blender (Nitrox & Trimix)
  • TDI Advanced Gas Blender (Trimix)
  • TDI Equipment O₂ Service Technician
  • ACA Coastal Kayak Instructor
  • RYA Day Skipper
  • RYA Powerboat Handler (Level 2)
  • RYA VHF Marine Radio Operator
Field Work

Documented encounters across five species and four oceans — from the shallows of the Bahamas to the deep blue channel of the Maldives.

01 — Great Hammerhead Shark  ·  Sphyrna mokarran

Bimini, Bahamas

Great Hammerhead — Bimini
Bimini, Bahamas
Great Hammerhead — open-water encounter
Hammerhead cephalofoil detail
Bimini, Bahamas
Cephalofoil detail — Great Hammerhead
Hammerhead approaching
Bimini, Bahamas
Approach behaviour — sandy substrate
Hammerhead dorsal view
Bimini, Bahamas
Dorsal fin profile — surface silhouette
Hammerhead cephalofoil upward
Bimini, Bahamas
Cephalofoil — looking toward surface
Hammerhead with baitfish
Bimini, Bahamas
Great Hammerhead amongst baitfish — sandy bottom
Hammerhead eye detail
Bimini, Bahamas
Eye and gill detail — close-range observation
Hammerhead ascending
Bimini, Bahamas
Ascending to surface — backlit silhouette
Hammerhead silhouette from below
Bimini, Bahamas
Ventral silhouette — surface light
Hammerhead with schooling fish
Bimini, Bahamas
Schooling fish and hammerhead — sandy shallows
Hammerhead open water
Bimini, Bahamas
Open water patrol — mid-column
Hammerhead dorsal close
Bimini, Bahamas
Dorsal and pectoral fins — lateral pass
Hammerhead from below
Bimini, Bahamas
Ventral view — open blue water

02 — Great White Shark  ·  Carcharodon carcharias

Mossel Bay, South Africa

Great White Shark — full body lateral
Mossel Bay, South Africa
Great White Shark — full lateral profile
Great White direct approach
Mossel Bay, South Africa
Direct frontal approach — open water
Great White close face-on
Mossel Bay, South Africa
Close-range face-on encounter
Great White head detail
Mossel Bay, South Africa
Rostrum and ampullae detail
Great White lateral full
Mossel Bay, South Africa
Lateral view — full body
Great White passing
Mossel Bay, South Africa
Close lateral pass
Great White full body approach
Mossel Bay, South Africa
Full body — approach posture
Great White head approaching
Mossel Bay, South Africa
Head-on approach — close range
Great White rostrum close
Mossel Bay, South Africa
Rostrum and eye — extreme close range
Great White underside
Mossel Bay, South Africa
Ventral head detail — ascending angle
Great White direct approach
Mossel Bay, South Africa
Direct approach — open water column
Great White head-on
Mossel Bay, South Africa
Head-on — mid-water
Great White gill detail
Mossel Bay, South Africa
Gill slits and lateral line detail
Great White dorsal and head
Mossel Bay, South Africa
Dorsal fin and head — lateral pass
Great White dorsal body
Mossel Bay, South Africa
Dorsal surface — passing overhead
Great White snout lateral
Mossel Bay, South Africa
Snout detail — close lateral
Great White dorsal from behind
Mossel Bay, South Africa
Dorsal and caudal fins — trailing view
Great White from behind
Mossel Bay, South Africa
Caudal and pectoral fins — trailing
Great White pectoral fin
Mossel Bay, South Africa
Pectoral fin and flank — close lateral
Great White passing close
Mossel Bay, South Africa
Close pass — lateral observation
Great White dorsal mid-water
Mossel Bay, South Africa
Dorsal surface — mid-water pass
Great White caudal fin trailing
Mossel Bay, South Africa
Caudal fin — trailing view
Great White full body lateral distant
Mossel Bay, South Africa
Full body — lateral at distance
Great White full body with caudal
Mossel Bay, South Africa
Full body — caudal and dorsal visible
Great White mid-water small
Mossel Bay, South Africa
Open water — full body at depth
Great White full lateral clear
Mossel Bay, South Africa
Full lateral — clear water column
Great White lateral passing
Mossel Bay, South Africa
Lateral pass — pectoral and dorsal

03 — Scalloped Hammerhead Shark  ·  Sphyrna lewini

Kicker Rock (Léon Dormido), Galápagos

Hammerhead — Kicker Rock Galápagos
Kicker Rock, Galápagos
Scalloped Hammerhead — deep blue water column
Hammerhead cephalofoil — Kicker Rock
Kicker Rock, Galápagos
Cephalofoil detail — ascending angle
Hammerhead ventral — Kicker Rock
Kicker Rock, Galápagos
Ventral surface — passing overhead
Hammerhead head detail — Kicker Rock
Kicker Rock, Galápagos
Cephalofoil — close ascending view
Multiple hammerheads — Kicker Rock
Kicker Rock, Galápagos
Multiple individuals — aggregation in open water
Hammerhead ventral ghosted
Kicker Rock, Galápagos
Ventral view — deep blue column
Hammerhead full body Kicker Rock
Kicker Rock, Galápagos
Full body — lateral pass at depth
Two hammerheads Kicker Rock
Kicker Rock, Galápagos
Two individuals — aggregation behaviour

04 — Sardine Run  ·  Reef Shark predation event

Léon Dormido, Galápagos

Sardine bait ball mass
Léon Dormido, Galápagos
Sardine bait ball — mass aggregation
Reef shark in bait ball
Léon Dormido, Galápagos
Reef shark hunting through sardine school
Reef shark bait ball lateral
Léon Dormido, Galápagos
Lateral pass — predator within school
Shark in dense bait ball
Léon Dormido, Galápagos
Dense aggregation — shark threading through school
Reef shark hunting bait ball wide
Léon Dormido, Galápagos
Wide view — shark and school interaction
Shark bait ball close
Léon Dormido, Galápagos
Close lateral — predator and prey
Reef shark full body bait ball
Léon Dormido, Galápagos
Full body — reef shark in school
Shark hunting bait ball wide angle
Léon Dormido, Galápagos
Wide angle — school density and predation

05 — Tiger Shark  ·  Galeocerdo cuvier

Fuvahmulah, Maldives

Tiger Shark — Fuvahmulah Maldives
Fuvahmulah, Maldives
Tiger Shark — close lateral pass in deep blue
Tiger Shark head eye close
Fuvahmulah, Maldives
Eye and rostrum — extreme close range
Tiger Shark ascending
Fuvahmulah, Maldives
Ascending angle — ventral and gill detail
Tiger Shark full body open water
Fuvahmulah, Maldives
Full body — open blue water column
Tiger Shark head on
Fuvahmulah, Maldives
Head-on — approach from depth
Tiger Shark full body lateral
Fuvahmulah, Maldives
Full lateral — characteristic tiger striping visible
Tiger Shark full body clear
Fuvahmulah, Maldives
Full body — open water lateral

Get in touch

Open to collaborative research, scientific diving operations, media projects, and conservation initiatives. Cody works selectively, prioritising fieldwork and direct conservation impact.

Speciality
Shark policy & protection · Field research · Scientific diving operations
Based
Often at sea. Globally mobile.
Background
University of Hawaii · University Centre of the Westfjords · Scripps Institution of Oceanography