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Squid

Scientists have discovered that squids existed 30 million years earlier than previously thought, using digital fossil-mining techniques to identify at least 40 species from ancient Cretaceous concretions in Japan. Squids, part of the Cephalopod class, are highly intelligent invertebrates found in diverse habitats and exhibit unique behaviors and adaptations. Their biological characteristics have inspired technological advancements such as color-changing materials and bio-inspired robotics.

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Nidhi Singh
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18 views2 pages

Squid

Scientists have discovered that squids existed 30 million years earlier than previously thought, using digital fossil-mining techniques to identify at least 40 species from ancient Cretaceous concretions in Japan. Squids, part of the Cephalopod class, are highly intelligent invertebrates found in diverse habitats and exhibit unique behaviors and adaptations. Their biological characteristics have inspired technological advancements such as color-changing materials and bio-inspired robotics.

Uploaded by

Nidhi Singh
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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Using digital fossil-mining techniques, scientists have uncovered that squids dominated ancient

oceans 30 million years earlier than previously believed, shedding new light on their deep
evolutionary history.

▪ Researchers digitally identified at least 40 species from two modern squid groups—
Oegopsida (deep-sea squids) and Myopsida (coastal squids)—in 110–70 million-year-old
Cretaceous concretions found in Japan.

▪ Digital fossil-mining involves using technologies like 3D scanning, CT imaging, AI, and GIS to
extract and analyze fossil data without damaging original fossils.

Squids

▪ About: Squids, belonging to the Cephalopod class (with octopuses and cuttlefish), have
a soft mantle, an internal shell (gladius), a parrot-like beak, two tentacles for capturing
prey, and eight arms for holding it.

o Like all cephalopods, they have three hearts and use jet propulsion for movement.
Squids

▪ Habitat Diversity: Squids are found worldwide, from shallow coasts to 3 miles deep, and
range in size from tiny pygmy squids to giant squids with the largest eyes in the animal
kingdom (volleyball-sized).

▪ Behavior and Intelligence: Squids are among the most intelligent invertebrates,
using chromatophores for camouflage, communication, and predator evasion.
o They can ink-spray, and detach arm-tips for distraction, and show social
behaviors like cooperative hunting (Humboldt squid) and mate guarding.

▪ Technological Contributions: They inspired color-changing materials, eco-friendly self-


healing packaging, and bio-inspired robotics.

▪ Uniqueness: Some squids can “fly” by gliding up to 164 feet, show parental care (e.g., bigfin
reef squid), and mimic prey to lure food

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