Readers respond to our March 2021 issue.

Humans have an image problem. But we might be able to use it for good.

The nation wants to eradicate all invasive mammal predators by 2050. Gene-editing technology could help—or it could trigger an ecological disaster of global proportions.

The planet’s tallest animal is in far greater danger than people might think.

Bird breeders pushed a Venezuelan finch to the brink of extinction so that canaries could be red.

Instead of denying threats to the planet, far-right propagandists seize on them as another means of sowing racial panic.