Those Amazing Desert Ants!

Jan 24, 2017 By Nupur V, Writer Intern
nupur_v's picture

When you are traveling to a new place, isn’t it convenient to use the GPS on your phone to find the route to your destination? 

Several insects often travel to faraway places in search of food, using a different route every day. Do you ever wonder how ants find their way so easily to the uncovered food in your kitchen? They definitely don’t have a GPS helping them out.

A new finding has reported that ants use their memory and the sun to find their way around. In fact, they can find their way back home no matter which way they are facing- they could be walking forwards, backward, or even sideways, and stick to their route.

How Ants Navigate

You may have noticed an ant carrying a rather large piece of food and walking around with it, without even looking like it is struggling. How do they do it?

Scientists studied the behavior of desert ants by giving them different-sized cookie crumbs. The ants that were given tiny cookie crumbs had no trouble walking forward. But, the ants that were given the large cookie crumbs had to drag them across the floor to move them, which means they had to walk backward. Scientists observed that these desert ants would walk for a bit, then stop, drop their cookie crumb, and turn around to see where they were going!  

What makes navigation difficult is that ants don’t have good eyesight. Their retina simply captures what they see, and that is how they use their memory to find their way back home. Scientists have also found that ants depend on the Sun for their direction. When they used a mirror to reflect sunlight and confuse them, the ants lost their orientation and went in the wrong direction.

Other Findings

The female ants in the colony that do not reproduce are called “workers” or “soldiers” because their job is to find food and leave a trail of their scent. This way, when they return, the other ants can simply follow their scent straight to the food. 

But how do ants know how far they have to go? Some researchers believe that ants use their stride - or the length of their steps to guess the distance. But, they were not really sure about this, so an experiment was conducted. The ants were made to wear stilts on their legs which gave them a longer step -- and they ended up traveling too far and missing their destination!

Comments

B0pper's picture
B0pper July 24, 2020 - 4:19pm
cool, another good article is https://youngzine.org/u-write/u-story/warriors-battling-danger-part-1 https://youngzine.org/u-write/u-story/warriors-battling-danger-part-2
Maahir1's picture
Maahir1 February 13, 2017 - 9:34am

Some ants are scary to me and dylan

xman's picture
xman January 31, 2017 - 9:14am

thats cool

Ibe's picture
Ibe January 29, 2017 - 4:51pm

This is so interesting! The picture of the ant dragging the spider creeped me out, though.

Aditya08's picture
Aditya08 January 27, 2017 - 2:35pm

So cool!

pugluve1's picture
pugluve1 January 26, 2017 - 4:29pm

how can I unlock this video for my son to watch it?

Deepa Gopal's picture
Deepa Gopal January 26, 2017 - 9:18pm

Hi - Do you have a blocker set? Are you in the US or outside the US? Thanks

Editor

Samanvitha's picture
Samanvitha January 26, 2017 - 2:11pm

That is so cool, i always wondered what happens when ants carry big crumbs of food.