Of course, ants and other animals do not make decisions in a “conscious” manner as humans would. Instead they rely on algorithms.
These elements of harvester ant behavior present a severe challenge for the evolutionary paradigm.
Some discriminators don’t get us very far in deciding which is the better explanation between blind evolution and intelligent design.
Spiders are another of nature’s master engineers. About half of known spider species (order Araneae) construct webs made of silk.
How can a trigonometric mathematical computation be programmed into the brain of an ant through a neo-Darwinian process of genetic mutation and natural selection?