Rising temperatures have spurred an influx of beavers to Alaska and northern Canada ‘on a huge scale’
The stream through western Alaska never looked like this before. In aerial photography from the 1980s, it wove cleanly through the tundra, thin as thread. Today, in satellite images, it appears as a string of black patches: one large pond after another, dozens of metres apart.
It’s a transformation that is happening across the Arctic, the result of landscape engineering on an impressive scale. But this is no human endeavour to reshape the world. It is the work of the North American beaver, and there is no sign of it stopping.
About Author
More Stories
Male mosquitoes to be genetically engineered to poison females with semen in Australian research
Memo to Trump: US telecoms is vulnerable to hackers. Please hang up and try again | John Naughton
Bizarre Australian mole even more unusual than first thought, new research reveals