Mammals are not especially diverse. Roughly 6,800 mammal species are known to exist, compared with about 8,800 species of amphibian, 11,000 species of bird and 12,500 of reptile. Yet when most people ...

By William Oehler, Director of Photography   The enduring sentiment of Gettysburg College’s education as “consequential” ...

We thank the authors for their comments and interest in our Series on ultra-processed foods (UPFs) and human health.

An outbreak of canine distemper virus (CDV) killed 72 tigers at two tourist animal parks in northern Thailand last month, officials said, ruling out earlier concerns that the deat ...