Butterfly's thinking is very complicated. It is observed that the butterfly worm itself is a kind of "calendar". They "draw" 365 stripes on their body walls every year, which is obviously one stripe a day. Strangely, paleontologists found that butterfly insects painted 400 watercolors every year 350 million years ago. Astronomers told us that at that time, the earth had only 2 1.9 hours a day, not 365 days a year, but 400 days, which proved the "digital talent" of butterfly insects.
Biologist Pepperberg once patiently trained a 6-year-old african grey parrot in Indiana, USA. Let it learn 40 English words and count them. This parrot can say the names, colors and shapes of dozens of things with these words. If these things are piled separately, it will also tell you how many things are in this pile.
The counting ability of small ants is not inferior. British entomologist Hinston did an interesting experiment: he cut a dead grasshopper into three pieces: small, medium and large. The middle piece is about 1 times larger than the small piece, and the big piece is about 1 times larger than the middle piece. It is placed next to the ant nest. When the ants found these grasshopper blocks, they immediately dispatched troops to transport the grasshopper back to its nest. About 10 minutes, 20 ants gathered around the small grasshopper, 5/kloc-0 ants gathered around the middle grasshopper, and 89 ants gathered around the big grasshopper. The distribution of the number and strength of ants is consistent with the proportion of the size of grasshoppers, and its accuracy is amazing.
Dr. Hansel, an American animal psychologist, first gave animals the wrong information in the experiment, and then observed their reactions. He once distributed two bananas to 100 Caribbean monkeys every day for a month, and then suddenly it was reduced to one banana. At this time, 96% of wild monkeys will watch bananas once or twice, and a few monkeys will even scream in protest. Yi Dan, an American animal behavior researcher, has done similar experiments. He first asked his eight chimpanzees to eat 10 bananas at a time, and so on many times. One day, suddenly, each orangutan only got 8 bananas. As a result, all the chimpanzees refused to go away until the owner made up 1 0 bananas.