Captive great apes tend to innovate simple tool behaviors quickly

Area of Science:

• Primate behavior
• Cognitive evolution
• Animal learning

Background:

• Individual learning and enhancement are crucial for novel behavior acquisition.
• Great ape tool innovation studies inform our understanding of technological evolution.
• Baseline tests are used to isolate individual learning in great ape tool innovation but lack standardization.

Purpose of the Study:

• To address the lack of standardization in baseline test durations for great ape tool innovation studies.
• To analyze the timing of innovation in great apes through a literature review.
• To provide data for designing more efficient and informative experiments.

Main Methods:

• Conducted a literature review of great ape tool innovation studies in zoological institutions.
• Compiled methodological data, including the timing of innovation.
• Analyzed innovation latency across different studies.

Main Results:

• Great apes exhibit an early innovation tendency.
• This tendency is more pronounced for simple tool use.
• Innovation frequently occurs within the first trial and/or first hour of testing.

Conclusions:

• Great ape tool innovation often happens rapidly, especially for simpler tasks.
• Factors like testing setup, species, and task influence innovation latency.
• This review can guide the design of more efficient and data-informed experiments on great ape tool innovation.