3. Fruit Flies

Fruit flies are scientifically called Drosophila melanogaster. These tiny insects have powerful senses of smell – powerful enough to sniff out cells that are damaged by cancer. This kind of flies have antennae that are covered in receptor neurons. Whenever the fly senses low concentrations of the right odors, it produces and receives a boost of calcium. Fruit flies are, undoubtedly, extremely annoying in our house. But the ways that medicine can use this species are endless. Flies respond on a biological level. Even though their reaction is not behavioral, their qualities as special as the qualities of other, more developed species.