Ecosystems can collapse suddenly and totally. Frozen zoos are trying to create archives of genetic material to prevent total extinctions.
The natural world depends on insects to function, but they may be the next casualty of climate change.
Death is inevitable for individuals and also for species. With help from the fossil record, paleontologists are piecing together what might make one creature more vulnerable than another.
Scientists believe since 2010 we have entered the sixth period of mass extinction. CO2 emissions will change the lives of plants and animals in the next three to four decades.
As much as one-third of animal species in the tropics could be eradicated if their habitats continue to be converted for monoculture farming. We can all do something to make a difference.
The planet has seen five 'mass extinctions' over the past half billion years, but each was followed by an explosion in biodiversity.
Biodiversity keeps declining despite lots of accumulated knowledge and numerous international and national commitments to act.