Accounting for the gaps in ancient food webs

If you want to understand an ecosystem, look at what the species within it eat. In studying food webs—how animals and plants in a community are connected through their dietary preferences—ecologists can piece together ...

Ancient die-off greater than the dinosaur extinction

Clues from Canadian rocks formed billions of year ago reveal a previously unknown loss of life even greater than that of the mass extinction of the dinosaurs 65 million years ago, when Earth lost nearly three-quarters of ...

page 4 from 12