Here be monsters (Orcas sinking boats on purpose)

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Discussion Overview

The discussion revolves around the behavior of orcas, particularly their reported actions of sinking boats in Europe. Participants explore the implications of this behavior, potential motivations, and the impact on both orcas and human activities. The conversation touches on aspects of animal intelligence, hunting strategies, and environmental concerns.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • Some participants note that orcas are exhibiting behavior that suggests they may be intentionally damaging boats, particularly by destroying rudders, with sinking being a side effect.
  • There is mention of orcas as effective pack hunters with sophisticated cooperative behavior, raising questions about their intelligence and social structures.
  • Concerns are raised about the fragility of sailboat components, particularly the rudder, and how this might contribute to the sinking incidents.
  • Participants speculate on the reasons behind orcas' interest in boats, suggesting that past experiences with boats or the fish-like shape of the hulls might play a role.
  • One participant proposes that orcas could be teaching their young about hunting techniques using boats as a non-threatening target, while others suggest it may be a response to perceived threats from quiet sailboats.

Areas of Agreement / Disagreement

Participants express a range of hypotheses regarding the motivations behind orca behavior, with no consensus reached on the primary cause or implications of these actions. Multiple competing views remain regarding the interpretation of the orcas' intentions.

Contextual Notes

Some participants reference environmental concerns affecting orca populations, such as prey depletion and habitat loss, which may influence their behavior. There is also uncertainty about the specific conditions leading to the incidents of sinking boats.

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Effective pack hunters, exhibit some sophisticated co-operative behaviour.

I remember watching this.



A quick google, they can be six tonnes and 26 feet long apparently, Great whites are about 20 ft and two tonnes max just for comparison.

Same family as dolphins so intelligent too.

Hopefully, it is just a fad as the article mentioned.

From wiki.

“Some local populations are considered threatened or endangered due to prey depletion, habitat loss, pollution (by PCBs), capture for marine mammal parks, and conflicts with human fisheries.

In late 2005, the southern resident orcas, which swim in British Columbia and Washington waters, were placed on the U.S. Endangered Species list.”
 
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Hornbein said:
The article says they are destroying rudders, the sinking is a side effect that happened in a few cases.
The rudder is the most fragile part of most sailboats. The rudder is sometimes attached only to a metal tube that passes through the hull and is sometimes not well supported. A collision might easily bend the tube and disrupt the seal which is sometimes hard to access to repair a leak. Even keels can be suspect especially when there is too much optimism in new technology used for support/mounting/fastening and it is pushed too far.

Why the orcas have an interest in the boats is interesting. I wonder as some suggest that the particular orca had some experience with one resulting in an interest. A sailboat's underwater shape is very fish-like some more than others. Since orcas like shark livers could this "attack" be due to the fact the size, shape, and color resembled a great white? I would be interested in the color of the underwater hull since white or gray might make it look like a shark.
 
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gleem said:
The rudder is the most fragile part of most sailboats. The rudder is sometimes attached only to a metal tube that passes through the hull and is sometimes not well supported. A collision might easily bend the tube and disrupt the seal which is sometimes hard to access to repair a leak. Even keels can be suspect especially when there is too much optimism in new technology used for support/mounting/fastening and it is pushed too far.

Why the orcas have an interest in the boats is interesting. I wonder as some suggest that the particular orca had some experience with one resulting in an interest. A sailboat's underwater shape is very fish-like some more than others. Since orcas like shark livers could this "attack" be due to the fact the size, shape, and color resembled a great white? I would be interested in the color of the underwater hull since white or gray might make it look like a shark.
Possible they are teaching their young where to bite a shark to get its liver using a ship that doesn't bite back. More likely IMO (given their intellect) maybe someone in the family got hit because the sail boats are quiet, and they are simply "fed up" retaliating against a perceived threat.
 

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