Volume 591 Issue 7849



News Features

News & Views

A bird’s migration decoded p.203

Technological advances offer new ways to investigate the contribution that changing climate and genes have made in shaping past migrations by peregrine falcons. Can this help to predict the fate of future migrations?

doi: 10.1038/d41586-021-00510-4

Cancer aided by greasy traitors p.204

Cancer can evade destruction by the immune system if aided by immunosuppressive regulatory T cells. These cells depend on a lipid-production pathway in the tumour environment, a vulnerability that might be used to target them.

doi: 10.1038/d41586-021-00421-4

Million-year-old DNA provides a glimpse of mammoth evolution p.208

DNA has been retrieved from mammoth specimens that are more than one million years old. Comparing the genomes of these animals and their descendants provides insights into the changes that occurred as one species evolved into another.

doi: 10.1038/d41586-021-00348-w

Ultra-weak gravitational field detected p.209

An experiment shows that Newton’s law of gravity holds even for two masses as small as about 90 milligrams. The findings take us a step nearer to measuring gravitational fields that are so weak that they could enter the quantum regime.

doi: 10.1038/d41586-021-00591-1