CURATED READING PATHS
Squid and deep-sea fish
Explore specimens, genetic traces, body structures and images without confusing detection, discovery and proof of an explanation.
Explore specimens, genetic traces, body structures and images without confusing detection, discovery and proof of an explanation.
Deep-sea animals
Can environmental DNA reveal giant squid? A Western Australia case ↗
A 2020 survey of two Western Australian submarine canyons found Architeuthis dux DNA in six samples. That is evidence of genetic material in collected seawater, not a sighting or count of squid; interpreting it depends on sampling design, reference sequences and how DNA moves.
Deep-sea animals
Giant squid in the North Atlantic: what records can establish ↗
Giant-squid records on both sides of the North Atlantic document encounters, not continuous occupancy or a population map. Specimens, capture locations and measurements let researchers compare anatomy and distribution, but tentacle condition, preservation and uncertain age estimates limit simple claims about size, range and lifespan.
Deep-sea animals
Are colossal squid real? Specimens, images and evidence ↗
Colossal squid are established animals supported by physical remains, museum specimens and confirmed ROV footage. A juvenile filmed near the South Sandwich Islands in 2025 was the first confirmed live footage in natural deep habitat, not the species’ first discovery; its anatomy and age sharply limit what it reveals about adults.
Deep-sea animals
When was the colossal squid discovered? Separate discovery from first filming ↗
The colossal squid’s discovery has several milestones: its formal naming in 1925, later specimen records, and the first confirmed footage of a living juvenile in its natural habitat in 2025. These mark different kinds of evidence, not one discovery date.
Deep-sea animals
Colossal squid hooks: a close look at the feeding apparatus ↗
Colossal squid have fixed hooks on their arms and rotating hooks on the middle of their tentacle clubs. Their placement and movement suggest different roles in grasping and holding prey, while also helping specialists identify the species.
Deep-sea animals
Why do some male anglerfish attach to females? ↗
In some deep-sea anglerfishes, a small male attaches permanently to a much larger female, gaining nourishment while supplying sperm. Tissue fusion and shared circulation make this reproductive strategy unusual, and are associated with changes in immune-related genes.
Deep-sea animals
What does a living blobfish look like? Habitat and photographs ↗
A living blobfish is not reliably represented by the famous trawled photograph. “Blobfish” covers multiple related species, and images show different animals under different conditions. Compare species labels, depth, and preservation history before drawing conclusions about appearance.
Deep-sea animals
Why do oarfish come ashore? Evidence behind the explanations ↗
Oarfish strandings invite dramatic explanations, but a plausible mechanism is not a diagnosis. Injury, illness, or disorientation may contribute, while individual causes can remain unresolved. The strongest account separates species, measured evidence, and speculation, and avoids treating sightings as earthquake warnings.
Deep-sea animals
Checking Cabo oarfish claims without repeating folklore ↗
A viral Cabo oarfish claim needs a verifiable original record before its size, date, or outcome can be treated as fact. Check footage, location, scale, and identification separately. A documented La Jolla case offers a comparison, not evidence that the Cabo event occurred.
Deep-sea animals
Juvenile oarfish: how a young animal differs from an adult ↗
Young oarfish resemble miniature adults, so size alone cannot establish age. Compare body proportions, crest and pelvic fins, and document the whole fish with a scale. Species differences and missing age evidence keep any juvenile identification provisional.