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Octopus

All articles tagged with #octopus

If Humans Vanish, Could Octopuses Rise to Rule Earth?
animals3 hours ago

If Humans Vanish, Could Octopuses Rise to Rule Earth?

Earth after humans is explored as a thought experiment: Oxford biologist Tim Coulson suggests that while extinction is inevitable for all species, humans leaving the scene could let other life forms fill ecological roles, with octopuses highlighted as potential civilization-building successors due to their problem-solving abilities and decentralized nervous system—though they’d still face challenges adapting to land; evolution remains unpredictable and intelligence could emerge in surprising ways.

via Earth.com|
#animals#earth-after-humans#evolution
Octopuses Could Dominate Earth After Humans, New Analysis Suggests
science4 days ago

Octopuses Could Dominate Earth After Humans, New Analysis Suggests

Oxford biologist Tim Coulson argues that if humans vanished, octopuses—with their decentralized nervous system, problem-solving skills, and environmental versatility—could be best positioned to build a civilization and survive an upheaval of global ecosystems. While primates and birds show intelligence, limited lifespans and social constraints make them unlikely successors, and octopuses face challenges like short lifespans and the current lack of intergenerational culture. The scenario remains speculative, contingent on long-term evolutionary changes and environmental conditions.

via The Daily Galaxy|
#evolution#intelligence#neuroscience
Octopus Arms: Versatile Tools for Complex Behaviors
biology5 months ago

Octopus Arms: Versatile Tools for Complex Behaviors

This study investigates how octopus arms facilitate complex behaviors in natural environments, revealing high flexibility, diverse arm actions, and localized deformations that support their ecological adaptability and inspire soft robotics. It highlights the hierarchical organization of behaviors, arm actions, and deformations, demonstrating that octopus arms can perform nearly all actions and deformations across all arms, with some task-specific partitioning, especially between anterior and posterior arms, in various shallow-water habitats.

via Nature|
#arm-deformations#arm-flexibility#biology
Octopus Camouflage: A High-Energy Masterpiece
science1 year ago

Octopus Camouflage: A High-Energy Masterpiece

A study by biologists Sofie C. Sonner and Kirt L. Onthank reveals that the rapid color-changing ability of octopuses is energetically demanding, akin to a 23-minute jog for humans. This process involves specialized skin cells called chromatophores, which require significant oxygen consumption. The high metabolic cost may explain certain octopus behaviors, such as hiding in dens to conserve energy. The research highlights the exceptional energetic demands of cephalopod color change, suggesting it is one of the most costly forms of color change in the animal kingdom.

via Forbes|
#chromatophores#color-change#energetic-cost
Coconut Octopus Uses Stones as Weapons in First-Ever Footage
science1 year ago

Coconut Octopus Uses Stones as Weapons in First-Ever Footage

In a groundbreaking discovery, a coconut octopus was filmed using its syphon to shoot stones at fish, a behavior never before documented. This footage, part of a Netflix documentary on marine life and plastic pollution, shows the octopus using its syphon as a projectile launcher while hiding in a clamshell. The team observed this behavior over three weeks, capturing the octopus loading and firing sandy debris at encroaching fish, a remarkable example of octopus intelligence and adaptability.

via The Sun|
#behavior#documentary#marine-life
Octopus Caught on Camera Using Stones to Hunt Fish
science-and-nature1 year ago

Octopus Caught on Camera Using Stones to Hunt Fish

A coconut octopus has been filmed using its siphon to throw stones at fish, marking the first recorded instance of this behavior. The footage, captured during a documentary on plastic pollution in Southeast Asia, shows the octopus using its siphon to launch projectiles at predators, a behavior previously undocumented. Researchers are studying this unique defense mechanism to understand its purpose and effectiveness. The discovery is featured in the Netflix series "Our Oceans," highlighting the intelligence and adaptability of marine life.

via Greek Reporter|
#behavior#documentary#marine-life
Brain 'Car Wash' Technique May Prevent Neurological Diseases
science1 year ago

Brain 'Car Wash' Technique May Prevent Neurological Diseases

This week's episode of CBC Radio's Quirks & Quarks explores various scientific topics, including the energy-intensive process of octopus camouflage, the surprising correlation between dog brain size and behavior, the role of dark energy in the emergence of life, the evolutionary origins of kissing, and the potential of the brain's waste removal system in preventing neurological diseases. Studies suggest that synchronized electrical waves during sleep and gamma frequency stimulation could help clear brain waste, potentially addressing disorders like Alzheimer's.

via CBC.ca|
#dark-energy#dog-brains#kissing
Coconut Octopus Uses Siphon to Shoot Stones at Fish in Unique Footage
science-and-nature1 year ago

Coconut Octopus Uses Siphon to Shoot Stones at Fish in Unique Footage

In a groundbreaking discovery, a coconut octopus was filmed using its siphon to shoot stones at predatory fish, a behavior never before recorded. This footage, captured for Netflix's series "Our Oceans," shows the octopus using its siphon as a projectile weapon to deter predators, a novel behavior that is now being studied for further understanding. The series, narrated by Barack Obama, highlights this unique defensive tactic, showcasing the octopus's ingenuity in its natural habitat.

via Livescience.com|
#animal-behavior#documentary#marine-biology