You may be busy today as a bee but these birds and ants are definitely not. In a comparative study conducted among birds, bees, and ants, scientists found that the cell density in the brains of bees is the highest, higher than most small birds. The density of neurons in ants was found to be very low. Researchers believe that these differences are due to their very different lifestyles. As bees fly, their visual information processing must be relatively fast and advanced.
Many other brain-features such as the size of specific brain classes that process visual information, sounds, smells, and even memories have often been compared between different denominations. However, size is not the best scale to measure actual brainpower. The brains of many animals may be small due to ergonomic reasons but they are still quite intelligent, for example, birds have smaller brains because flying heavily would be a challenge. Therefore, their neurons are tightly packed, forming a high cell density.
According to New scientist, In experiments led by Rebekah Keating Godfrey at the University of Arizona, studied 32 different species of brains of 450 insects, including bees, wasps, ants, and one species of fly. He used a recently developed technique for counting brain cells.
The details are a bit – but they separate the individual brains and soak it in a solution that will free the nucleus of each brain cell. Nuclei were added using a dye to create fluorescence, which they can be used under an ‘epifluorescence’ microscope using ultraviolet light.
What the results say:Some bees were discovered to have higher cell densities than other species. The highest was the metallic green sweat bee (in the genus Oglocochorella) with 2 million per milligram. Whereas the ant species Novomocer cocarelli contained only 400,000 cells per milligram. But team member Wolfila Grönberg says it has little to do with intelligence and much to do with visual acuity during air travel.