
Life
Explainer: What is an endangered species?
Threats such as climate change and habitat loss can put species at risk of going extinct. Different words describe that risk.
Threats such as climate change and habitat loss can put species at risk of going extinct. Different words describe that risk.
A cloned ferret named Elizabeth Ann brings genetic diversity to a species that nearly went extinct in the 1980s.
When viruses become more infectious or better able to survive the body’s immune system, they become a type of variant known as a strain.
Human activities around the world are threatening bird species. Numbers of even some of the most common species are starting to fall.
Wild animals carry viruses that can sicken people. Monitoring those viral hosts that pose the greatest risk might help prevent a new pandemic.
A mosquito-borne virus once found only in the tropics has adapted to survive in mosquitoes in cooler places, such as Europe and North America.
When temperatures rise, New Zealand’s tuatara produce more males. With global warming, that could leave the ancient reptile species with too few females to avoid going extinct.