A whimbrel's journey is tracked by a satellite transmitter so scientists can track her yearly journeys from the Virgin Islands to northwestern Canada and back.
A study suggests that horses who know their trainers have a good concept of person. However, a trainer working with a new horse can expect less success.
Scientists are concerned that melting water in the Arctic Ocean could change global ocean circulation patterns, alter climate and decimate marine fisheries.
Twitter users can benefit those seeking to broadcast or discover information in times of disaster, but a method for regulating false "retweets" might be needed.