Cuttlefish favour their current need to hide rather than their future need for food

Area of Science:

• Cognitive Science
• Neuroethology
• Evolutionary Biology

Background:

• Episodic memory and future thinking are often linked in vertebrates' mental time travel.
• Cephalopods, with their unique evolutionary path and advanced cognition, offer insights into the evolution of these abilities.

Purpose of the Study:

• To investigate future-planning capabilities in the common cuttlefish (Sepia officinalis).
• To determine if future planning is linked to episodic-like memory in cephalopods.
• To explore the evolutionary divergence of future planning and episodic memory.

Main Methods:

• Cuttlefish were tested on their ability to plan for future food needs versus immediate shelter needs.
• The experiment involved varying the protective value of available shelters.
• Behavioral responses were recorded to assess planning versus immediate gratification.

Main Results:

• No evidence of future-planning behavior was observed in cuttlefish.
• This lack of planning occurred irrespective of the shelter's protective value.
• Cuttlefish prioritized immediate shelter over future food needs, even when hungry.

Conclusions:

• Cuttlefish may not possess the ability to act in the present to secure future needs.
• Episodic memory and future planning might be distinct cognitive traits with independent evolutionary histories.
• Comparing cognition in cephalopods and vertebrates helps understand the evolution of complex cognitive abilities.