According to statistics, there are 124 species of animals with vocal and intellectual levels, but only a few birds can really talk to humans.
Parrots are one of them, and for a long time, parrots have been treated as pets by humans because of their clever brains, but in the past few centuries, humans have not been very friendly to parrots.
The Carolina parakeet is the only native parrot in the eastern United States, flying from New England to Florida and then to eastern Colorado to settle down, and originally lived ok, but by the beginning of the 20th century, it disappeared in just a few decades.
Experts believe that humans played an important role in the extinction of this species.
In order to expand agricultural development, people cut down forests and destroyed the habitat of birds, which may be one of the reasons for the extinction of birds;
The carolina parrot has brilliant plumage, and it is because of its vibrant green, yellow and red feathers that they are hunted and used to decorate women's hats;
When agriculture expanded, they began to use fruits and vegetables and grains, so they were identified as pests by farmers, shooting in large numbers, and they liked to live in groups, even if their companions were shot, they would still gather around their companions, so more parrots died.
In order not to let humans innocently carry the pot, scientists have sequenced the genome of the Carolina long-tailed parrot.
As we all know, the extinction factors are very complex, and humans are an important part of it, but there are also diseases, natural disasters and other factors.
Many scientists believe that the extinction of the Carolina parakeet should not be carried by humans, perhaps due to diseases transmitted by poultry, or sudden natural disasters that lead to species extinction.
But based on the sequencing results of the genome, it was confirmed that humans may be the only cause of the sudden extinction of this bird.
The team looked at a well-preserved parrot with tibia and toe pads from a private Spanish collection and conducted genetic studies.
The researchers did not find a significant bird virus in the DNA of the Carolina parakeet, and believe that after the last ice age about 110,000 years ago, the parrot population may have continued to decline before humans began hunting, and that the reason for this decrease may be due to inbreeding.
But the team didn't have evidence of actual inbreeding, because the parrot suffered a very rapid process of extinction, leaving specimens containing any genetic traces, that is, the species had not yet had time to become endangered, and the number went straight from more to zero, and went extinct.
And the sudden and rapid extinction of a species is often only possible for humans.
At last
The disappearance of the Carolina parakeet is considered to be a sudden and rapid process, so scientists believe that only humans can do it.
There are many more such cases, but given the lack of scientific specimens, many people have doubts about this conclusion.
But whether true or false, it shows a problem, that is, how strong is the destructive ability of humans, and the flying birds can be eliminated so quickly, so how long will the flightless land creatures survive?