The beak of the snowy petrel has changed during the coronavirus
A bird called the snowy petrel on the campus of the University of California, Los Angeles (UCLA) in the United States changed its beak length during the coronavirus pandemic.
The snowy petrel is originally a bird that lives in the mountains, but recently it has also been living in towns.
The snowy petrel that lives in the mountains has a long beak.
It is useful for eating seeds and insects
But the snowflies in town have short beaks.
This is because they eat a variety of things, including the remains of human food
The research team found that snow petrels born in 2021 and 2022, when universities were closed due to the coronavirus, had long beaks like mountain birds.
But when the coronavirus pandemic ended and students returned, their beaks became shorter again.
This is because birds can quickly change to suit their environment
Researchers say, ``We often don't realize that evolution is happening quickly around us.''
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