![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/YKEPSRKXSIZIZMTMAM65LCJWFU.jpg?smart=true&auth=2becad740f0cd0b24157a8e2c97a81b31e0af599aaee1db7b7797d15e2a15a73&width=400&height=225)
Aedes koreicus, a mosquito species from east Asia that has been found in Europe since 2008. Credit: Dorian Dörge, Senckenberg
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/UDJUMLSV2NM3NI7RJKAXOIKQSY.jpg?smart=true&auth=bc302a5c3058b63c754381f9cb2f4928721752c58d1f96fb5d89b699a1bb4c2d&width=400&height=225)
Eastern grey squirrel originally from North America and now found in Europe. Credit: Tim Blackburn, UCL
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/JH3SS6O62XSCCIZ6GNMCUIIAHU.jpg?smart=true&auth=c3792373f606e1339fabfec3762318360e279e1b2000c0d09aed43e981276e61&width=400&height=225)
Box tree moth, native to east Asia and now found across Europe. Credit: Tim Blackburn, UCL
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/GGUHBNFQYZBITW3G6SLYRQOWEE.jpg?smart=true&auth=da11d219594c756b0baae0d6390db5b5e8b2288faf8891dbc3fdea84c1f4c292&width=400&height=225)
Egyptian goose (Alopochen aegyptiaca) originally from Africa and now established in Central and Western Europe. Credit: Tim Blackburn, UCL
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/YKEPSRKXSIZIZMTMAM65LCJWFU.jpg?smart=true&auth=2becad740f0cd0b24157a8e2c97a81b31e0af599aaee1db7b7797d15e2a15a73&width=400&height=225)
Aedes koreicus, a mosquito species from east Asia that has been found in Europe since 2008. Credit: Dorian Dörge, Senckenberg
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/UDJUMLSV2NM3NI7RJKAXOIKQSY.jpg?smart=true&auth=bc302a5c3058b63c754381f9cb2f4928721752c58d1f96fb5d89b699a1bb4c2d&width=400&height=225)
Eastern grey squirrel originally from North America and now found in Europe. Credit: Tim Blackburn, UCL
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/JH3SS6O62XSCCIZ6GNMCUIIAHU.jpg?smart=true&auth=c3792373f606e1339fabfec3762318360e279e1b2000c0d09aed43e981276e61&width=400&height=225)
Box tree moth, native to east Asia and now found across Europe. Credit: Tim Blackburn, UCL
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/GGUHBNFQYZBITW3G6SLYRQOWEE.jpg?smart=true&auth=da11d219594c756b0baae0d6390db5b5e8b2288faf8891dbc3fdea84c1f4c292&width=400&height=225)
Egyptian goose (Alopochen aegyptiaca) originally from Africa and now established in Central and Western Europe. Credit: Tim Blackburn, UCL
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/YKEPSRKXSIZIZMTMAM65LCJWFU.jpg?smart=true&auth=2becad740f0cd0b24157a8e2c97a81b31e0af599aaee1db7b7797d15e2a15a73&width=400&height=225)
Aedes koreicus, a mosquito species from east Asia that has been found in Europe since 2008. Credit: Dorian Dörge, Senckenberg
Alien invasion: how species are globetrotting and setting up home in unnatural habitats
Biologists believe nature’s migration is down to increasing world trade and travel
![Jamie Prentis](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/https%3A%2F%2Fs3.amazonaws.com%2Farc-authors%2Fthenational%2F7e8731e9-4925-4121-9565-fee2525fc1c6.png?smart=true&auth=8c028507ec53318d49d5123c5dc965135b9b7aea1a6d3ffd9ccacfb39b6f8f40&width=70&height=70)
Jamie Prentis
01 October, 2020
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