Giraffes Can Do Math: Study Reveals Their Surprising Addition Skills
A new study shows giraffes can mentally combine quantities, a skill akin to addition. This challenges assumptions about animal intelligence and cognitive evolution.
Move over, primates—giraffes might just give you a run for your money in basic math. A University of Barcelona study reveals these long-necked giants can mentally combine quantities to choose the larger food reward, a cognitive feat comparable to simple addition. This discovery reshapes our understanding of animal intelligence and the evolutionary roots of numerical cognition.
- Giraffes successfully chose the larger food quantity 70% of the time when combining two hidden amounts.
- The study suggests numerical cognition may be more widespread among mammals than previously thought.
- Researchers plan to test whether giraffes can also perform subtraction-like calculations.
- Understanding animal intelligence helps design better conservation strategies and zoo environments.
What Happened
Researchers at the University of Barcelona tested four giraffes at Barcelona Zoo using a clever food-based experiment. They hid varying quantities of carrots in two containers, then let the animals watch as researchers added more carrots to each—forcing the giraffes to mentally combine the quantities before choosing. The giraffes selected the larger total 70% of the time, significantly above chance. The study, published in Scientific Reports, marks the first conclusive evidence of addition-like skills in ungulates (hoofed mammals).
The Bigger Picture
This discovery expands the known range of species capable of quantitative reasoning beyond primates, birds, and dolphins. It suggests that basic numerical skills may have evolved independently in different animal groups as an adaptive advantage for foraging.
“Giraffes’ complex social structures and feeding ecology may have driven the development of these cognitive abilities,” said Dr. Alvaro Caicoya, lead researcher at the University of Barcelona.
The findings also raise questions about how we measure intelligence across species with vastly different biologies and lifestyles.
What Comes Next
The research team plans to expand testing to wild giraffe populations and investigate whether these skills vary by age or sex. Future studies may explore subtraction abilities and whether giraffes can distinguish larger numerical differences. For zoo visitors, expect to see more cognitive enrichment activities for giraffes within the next 2-3 years as facilities incorporate these findings into animal care programs.
Q: How did researchers test giraffes’ math skills?
They hid carrots in containers, added more while giraffes watched, then observed if the animals could choose the larger combined quantity.
Q: Why is this discovery important for conservation?
Understanding cognitive abilities helps design better protected areas and captive environments that challenge animals mentally.
