Surgery — Not Just For Humans Anymore

Amputation and wound care behavior in C. floridanus (A) Illustration of a worker providing wound care on a femur-injured individual. (B) A worker amputating (biting) the injured leg at the trochanter. (C) A worker providing wound care on the newly created trochanter wound after amputation. (D) Percentage of amputations performed on ants with an infected or sterile femur (red) or tibia (blue) injury after 24 h. Numbers above the bars represent the sample size for each treatment. (E) Percentage of time the injured ant received wound care behavior over 3 h, binned in 10 min intervals, with a local polynomial regression (loess) showing a 95% confidence interval for the first 3 h after the experimental femur injury (femur, red: n = 8) and the first 3 h after amputation on the trochanter wound (trochanter, brown: n = 7).

Sometimes, a limb is damaged so badly that the only way to save the patient is to amputate it. Researchers have now found that humans aren’t the only species to perform life-saving amputations. [via Live Science]

While some ants have a gland that secretes antimicrobial chemicals to treat wounds in their comrades, Florida carpenter ants have lost this ability over the course of evolution. Lacking this chemical means to treat wounds, these ants have developed the first observed surgery in an animal other than humans.

When an ant has a wounded leg, its fellow ants analyze the damage. If the femur is the site of the wound, the other ants removed the damaged limb in 76% of cases by biting it off, while tibial wounds were treated in other ways. Experimental amputations of the tibia by researchers showed no difference in survivability compared to leaving the limb intact unless the amputation was performed immediately, so it seems the ants know what they’re doing.

Maybe these ants could be helpful surgical aids with some cyborg additions since they’ve already got experience? Ants can help you with programming too if that’s more your speed.

21 thoughts on “Surgery — Not Just For Humans Anymore

  1. I watched the video but did not see an actual amputation being performed. I just saw an out of focus video with an ant with a yellow (paint?) dot on it’s back and a damaged leg (probaby mutilated by a human), and another ant fiddling a bit around with it. Maybe it was just inspecting it, or attempting something else.

    And with nothing happening in the video, it’s just another exercise of fake news. (At least, it seems so without diving deeper, but I’m not all that interested in ants).

    1. A little bit later I actually followed the link to the article. It has two video’s One for amputation, and the other for wound care. Hackaday embedded the wrong video here.

  2. Talking of ants, I saw some copper tape on sale against snails and it said it also works againts ants.
    Can anybody confirm and explain that one? Because sure it makes sense with snails but why would ants be stopped by copper? And while I’m asking: can that be used as a plotline in an antman movie.

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