The arctic fox, which is included in the IUCN Red List of Threatened Species, now appears to be extinct in Finland and is down to extremely low levels throughout Scandinavia. The arctic fox now ...

Since few species have their own sequenced genome, scientists often use the DNA of a related species as a stand-in — a shortcut that can distort research findings. A new study published in Cell shows ...

The collar weighs about a kilogram and transmits six times a day. Fitted to an adult female somewhere in western Hudson Bay, it relays her position to a satellite, which passes that fix to a server, ...