Tortoises have human-like feelings, study finds | BBC News

Key Concepts:

• Optimism/Pessimism in tortoises
• Cognitive bias
• Animal welfare in captivity
• Environmental influence on animal behavior
• University of Lincoln study
• Red-footed tortoises

Study on Optimism in Tortoises

• Objective: A study conducted by Professor Anna Wilkinson at the University of Lincoln aimed to determine if tortoises exhibit optimistic or pessimistic tendencies.
• Methodology:
  • Red-footed tortoises (Moses, Esme, and Gerard Butler) were trained to associate the right side of their enclosure with a food reward and the left side with no food.
  • The tortoises were then presented with a food bowl in the middle of the enclosure.
  • Their behavior was observed to see if they approached the middle bowl as if it were likely to contain food (optimistic) or be empty (pessimistic).
• Findings: The study found that the tortoises, overall, displayed an optimistic bias.
• Significance: The findings suggest that tortoises are capable of experiencing emotions and that their environment can influence their emotional state.

Implications for Animal Welfare

• Improved Care: Understanding that tortoises have feelings can lead to better care and attention in captivity.
• Longevity: Given that some tortoise species can live up to 200 years, it is crucial to ensure they are kept in optimal conditions for their well-being.
• Individual Impact: Suboptimal conditions can have a significant negative impact on the individual tortoise's quality of life.

Examples and Anecdotes

• Mary the Tortoise: A tortoise named Mary was used as an example to illustrate how tortoises can express their emotions. She appeared optimistic when she thought she was going to receive an apple but seemed "fuming" when she realized the apple was not for her.
• Professor Wilkinson's Favorite: Professor Wilkinson admitted that her favorite tortoise is Moses, who is also her pet.

Notable Quotes

• Professor Anna Wilkinson: "If you have a pet tortoise and you understand that tortoise has feelings you're going to put more time, effort, and energy into looking after it in the best way."

Technical Terms

• Optimistic Bias: The tendency to expect positive outcomes or to interpret ambiguous situations in a positive light.
• Cognitive Bias: A systematic pattern of deviation from norm or rationality in judgment.

Logical Connections

The study's findings on optimism in tortoises are directly linked to the importance of animal welfare. The understanding that tortoises have feelings and can be influenced by their environment provides a strong argument for improving their care in captivity.

Synthesis/Conclusion

The University of Lincoln study provides evidence that tortoises can experience emotions like optimism and that their environment can impact their emotional state. This understanding has significant implications for animal welfare, emphasizing the need to provide optimal conditions for tortoises in captivity to ensure their well-being. The research highlights the importance of recognizing the cognitive and emotional capabilities of animals, even those that may not be traditionally associated with complex emotions.