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Can Ants Swim?

can-ants-swim

Answer:

Most ants can NOT swim.

More Info: Though most ants will float on water and clumsily flail their legs about, they are not considered swimmers.

Most ants are poor swimmers as indicated by the many ant deterrent systems that take advantage of this fact.   For example, many hummingbird feeders are designed with saucer-type ‘ant moats’, which separate a ring of fresh water from the sugar water, intended for the hummingbirds.  Ants will not cross the water moat to get to the sugar water.

Ants Are Resourceful

Ants are hydrophobic allowing them to repel water and float, but their legs are poorly suited for any water movement.  The fire ant has a unique method of surviving on water.  In times of floods, fire ants will band together as a colony joining legs to form a ‘raft’.  When banded together, the hydrophobic properties increase allowing them to become even more buoyant.  If the fire ant raft is submerged underwater, it will quickly float to the surface.  This unique feat of nature allows the ants to live for months while floating to find a new home. [Bush, 62]

The Amazing Diving Ant

Unlike most ants, the Camponotus schmitzi ants regularly dive and swim to forage for food.  The ants live in symbiosis with the pitcher plant and regularly seek food in the plant’s digestive juices.  The pitcher plant has unique pitcher-like leaves with hoods that secrete nectar to attract insects.  The insects become trapped in the plant and fall into the digestive juices where they drown and are absorbed by the plant.  The ants can dive through the digestive juices to find arthropods that have been trapped by the plant.  [Bohn, 2012]

 

Resources

“Dealing with Predators and Pests in Your Yard.” The Cornell Lab of Ornithology. Cornell University, n.d. Web. 22 May 2012. <www.birds.cornell.edu/Page.aspx?pid=1185>.

Bush, John W. M., and David L. Hu. “Walking on water.” Physics

Today 63.6 (2010): 62-63. ©2010 American Institute of Physics

Bohn, HF, and et al. “Ants swimming in pitcher plants: kinematics of aquatic and terrestrial locomotion in Camponotus schmitzi..” National J Comp Physiol A Neuroethol Sens Neural Behav Physiol. 2012] – PubMed – NCBI. National Center for Biotechnology Information, n.d. Web. 22 May 2012. http://www.ncbi.nlm.nih.gov/pubmed/22526112

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