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Ants may be smarter than we give them credit for. Tool use is seen as something brainy primates and birds do, but even the humble ant can choose the right tool for the job.
István Maák at the University of Szeged in Hungary and his team offered two species of funnel ants liquids containing water and honey along with a range of tools that might help them carry this food to their nests.
The ants experimented with the tools and chose those that were easiest to handle and could soak up plenty of liquid, such as bits of sponge or paper, despite them not being found in the insects’ natural environment.
This suggests that ants can take into account the properties of both the tool and the liquid they are transporting. It also indicates they can learn to use new tools – even without big brains.
Some ant species are known to use tools, such as mud or sand grains, to collect and transport liquid to their nests. But this is the first time they are shown to select the most suitable ones, says team member Patrizia d’Ettorre from the University of Paris-North, France.
István Maák at the University of Szeged in Hungary and his team offered two species of funnel ants liquids containing water and honey along with a range of tools that might help them carry this food to their nests.
The ants experimented with the tools and chose those that were easiest to handle and could soak up plenty of liquid, such as bits of sponge or paper, despite them not being found in the insects’ natural environment.
This suggests that ants can take into account the properties of both the tool and the liquid they are transporting. It also indicates they can learn to use new tools – even without big brains.
Some ant species are known to use tools, such as mud or sand grains, to collect and transport liquid to their nests. But this is the first time they are shown to select the most suitable ones, says team member Patrizia d’Ettorre from the University of Paris-North, France.
Ants craft tiny sponges to dip into honey and carry it home
Non-expandable stomachs mean these ants need to use absorbent tools to transport tasty liquids to their nests – and they figure out the best objects for the job
www.newscientist.com
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