Barreleye Fish Vision: Eyes Built for the Mesopelagic Zone
Discover the painted frogfish's incredible hunting techniques and vibrant color-changing abilities.
August 2026
December 2025
Colossal Squid: The Largest Invertebrate
Colossal squid weigh 500kg with the largest eyes of any animal. Expert guide to the Antarctic giant that's actually bigger than the famous giant squid.
The Giant Squid Behind the Kraken Legend
Giant squid reach 13 meters and have the largest eyes of any animal. Expert guide to the real kraken, why they remained mythical until 2004, and their deep sea life.
November 2025
Anglerfish: The Deep Sea Predator With a Glowing Lure
Anglerfish use bioluminescent lures to hunt in total darkness. Expert guide to these terrifying deep-sea predators and their bizarre parasitic mating.
Barreleye Fish: Transparent Head Discovery
Barreleye fish have completely transparent heads showing their green barrel-shaped eyes that rotate to look up or forward. Expert guide to deep sea's weirdest fish.
Bioluminescence: The Glow of the Deep Sea
Expert guide to bioluminescence in the deep sea. Covers the chemistry of living light, anglerfish lures, counterillumination, GFP and the Nobel Prize, dragonfish red light, and why 76 percent of deep-ocean life glows in the dark.
Blobfish: Adjusting to Underwater Life
Blobfish only look weird when brought to surface. Expert guide to why pressure changes transform them and their actual deep-sea lives.
Deep-Sea Creatures: Surviving Total Darkness
Explore the bizarre and fascinating world of deep-sea creatures. Expert-written guide covering anglerfish, giant squid, hydrothermal vents, bioluminescence, the Mariana Trench, and the remarkable adaptations that allow life to thrive under crushing pressure in total darkness.
Dumbo Octopus Life in the Deep Sea
Dumbo octopuses live 7,000 meters deep with floppy ear-like fins and swallow prey whole. Expert guide to the deepest octopus and why everyone loves them.
Fangtooth Fish: Deep-Sea Predator
Fangtooth fish have proportionally the largest teeth of any vertebrate. Expert guide to the deep-sea predator with fangs so long they have special skull sockets.
Frilled Shark: Ancient Predator of the Deep
Frilled sharks have barely changed in 80 million years and have 300 needle-sharp teeth. Expert guide to the primitive deep-sea shark from the age of dinosaurs.
Giant Isopod: The Ocean's Large Crustacean
Giant isopods reach 50cm and can survive 5 years without eating. Expert guide to these giant deep-sea crustaceans and why they're like cockroaches of the ocean floor.
Gulper Eel: The Deep Sea Fish With an Umbrella for a Mouth
Gulper eels can swallow prey larger than themselves using their balloon-like mouths. Expert guide to the bizarre deep-sea fish with extraordinary jaw mechanics.
The World's Largest Arthropod by Leg Span
Japanese spider crabs have 3.7 meter leg spans, the largest arthropods on Earth. Expert guide to these deep-sea giants and their 100-year lifespans.
Mariana Trench Creatures: Survivors of Depth
Expert guide to the animals living in the deepest part of the ocean, from the Mariana snailfish to amphipods and xenophyophores. Biochemistry of pressure tolerance, landmark expeditions, and the biology of life at 11,000 meters.
Vampire Squid Deep-Sea Adaptations
Vampire squid live 3,000m deep in the ocean's oxygen minimum zone and eat floating dead matter. Expert guide to the only cephalopod that doesn't hunt live prey.
Life in the Mariana Trench: Uncovering Mysteries
What actually lives in the Mariana Trench, Earth's deepest point? Expert guide to the bizarre creatures discovered at 11,000 meters - snailfish, amphipods, and more.
Yeti Crab: The Hairy Crab That Farms Bacteria on Its Claws
Yeti crabs live at deep-sea hydrothermal vents and grow bacteria on their hairy claws for food. Expert guide to Kiwa hirsuta and hydrothermal vent life.
October 2025
Goblin Shark: The Deep Sea Living Fossil With an Alien Jaw
Goblin sharks have jaws that shoot forward like aliens and haven't changed in 125 million years. Expert guide to deep sea's strangest living fossil.
August 2025
Deep-Sea Anglerfish: Nature's Bizarre Predator
Everything about the deep-sea anglerfish: glowing lures, sexual parasitism, ambush hunting, taxonomy, habitat, and the strange facts that make Ceratioidei the deep ocean's most bizarre predators.
June 2025
Giant Squid: Elusive Ocean Ruler
Everything about the giant squid: size, deep-sea habitat, basketball-sized eyes, sperm whale battles, Kraken legends, and the strange facts that make Architeuthis dux the ocean's most elusive giant.
April 2025
Sperm Whale: Anatomy, Hunting and Social Life
Everything about the sperm whale: size, habitat, diet, deep diving, echolocation, reproduction, conservation, and the strange facts that make Physeter macrocephalus the largest toothed predator and deepest diving mammal on Earth.
Vampire Squid: Unique Deep-Sea Cephalopod
Everything about the vampire squid: habitat, detritus diet, bioluminescent defence, anatomy, reproduction, and the strange facts that make Vampyroteuthis infernalis a living relic of the deep sea.
February 2025
Dumbo Octopus: The Deep Sea's Gentle Giant
Everything about the dumbo octopus: the deepest-living octopus on Earth, its Disney-inspired name, ear-like swimming fins, 7,000 metre depth records, asynchronous egg-laying, and why it was never filmed alive until 1999.
Japanese Spider Crab: Nature's Giant
Everything about the Japanese spider crab: size, habitat, diet, decoration behaviour, reproduction, longevity, and the strange facts that make Macrocheira kaempferi the largest arthropod on Earth.