Nautilus: Ancient Cephalopods That Have Endured Time
Nautiluses have existed essentially unchanged for 500 million years, predating dinosaurs. Expert guide to the last shelled cephalopods and their ancient lineage.
November 2025
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.
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.
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.