Bird enthusiasts have received sobering news with this year’s U.S. State of the Birds report. According to a new assessment completed by American Bird Conservancy, Cornell Lab of Ornithology, National ...

Around 66 million years ago, a six-mile-wide asteroid hit Earth, triggering the extinction of three-quarters of all living ...

Changing the design and layout of shops on the sidewalk leads to changes in the risk of fire on the sidewalk. Thus, a directed graph model based on the network topology structure is proposed to ...

scientists estimate they now contribute to the extinction risk of at least 1,660 animal species worldwide. “We developed small guts and big heads by cooking food; we climbed the food chain by ...