Study Suggests Giraffes May Possess Basic Math Skills
Barcelona Zoo giraffes successfully identified larger food quantities in 68% of trials, suggesting they possess basic numerical assessment abilities previously unknown in the species.
A surprising new study from researchers in Barcelona is stunning the scientific community after finding evidence that giraffes may possess basic numerical assessment abilities—skills more advanced than previously believed.
The research was a collaboration between the University of Barcelona, Leipzig University, and the Max Planck Institute for Evolutionary Anthropology, published in the journal Scientific Reports. The team tested four giraffes from Barcelona Zoo to determine whether they could distinguish between food quantities and choose the larger amount.
In the experiment, researchers presented the giraffes with two containers holding different numbers of carrot pieces. After the giraffes observed them, the containers were covered. Researchers then added or removed carrot pieces while the giraffes watched, testing whether they could track changes in food quantity.
Results showed that when carrot quantities were added, giraffes successfully selected the container with more carrots in 68% of trials—significantly higher than random chance. This suggests they were making deliberate choices rather than simply guessing.
To ensure giraffes weren't simply following the researchers' behavior, scientists designed additional tests to check if they were responding to the experimenter's touch rather than counting. Two giraffes appeared to rely on this cue, but the other two continued selecting the larger quantity at the same rate, suggesting they used genuine quantitative assessment.
Researchers noted that these two giraffes may employ complex brain processes beyond basic perception, though not identical to human arithmetic. However, when the experiment switched to removing carrot pieces, giraffes performed poorly—choosing the larger amount at roughly random levels—indicating their abilities have limitations depending on the task.
While researchers emphasize that giraffes don't calculate numbers like humans, this study demonstrates that these long-necked animals possess fundamental understanding of quantity and can use this information in decision-making. This finding provides important evidence offering new perspectives on animal intelligence and cognitive abilities.
