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We humans have been changing the environnent around us for a very long time. A recent study found that humans in Africa may have used fire to prevent forest regrowth as early as 85,000 years ago. We change the animals around us, too. Most famously turning wild wolves into dogs, maybe as early as 40,000 years ago.
And our effect on animals hasn't stopped, right up to the present day. Because as we change the world, animals have to change if they want to survive.
For one example, consider how the roads wedrive on could be changing the birds that fly over them. A study of swallows(燕子)in Nebraska found that, from 1983 to 2022, the birds' wings got shorter probably because havingmaller wings made them better at avoiding cars. Ivory hunting may also have led elephants to beborn without tusks (the teeth of the elephants). Both male and female African elephants usuallyhave tusks. But half of the female elephants were born without tusks, unlike those before. Living close to humans may even make some animals smarter. City raccoons(浣熊)are better thancountry ones at opening bottles to get food. City raccoons have also learned to keep smaller fields so they don't have to cross major roads, where they're in greater danger!
As we see these changes in animals, we're reminded that animals are adapting to(适应)our world. What about trying to adapt,too? Maybe slow down on roads for crossing animals, or leave part of our gardens for wildlife. The earth belongs to all of us let's share it!
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