Much of what living cells do is carried out by "molecular machines" – physical complexes of specialized proteins working together to carry out some biological function.

By resurrecting ancient proteins, University of Oregon researchers find that evolution can only go forward.

Shane Doan's power-play goal with 27 seconds left in the game Tuesday handed Phoenix a 4-3 win over San Jose. Doan scored just 6 seconds after Jonathan Cheechoo was called for interference.

Patrick Marleau had a goal and two assists for San Jose, which scored three times in a 6-minute span of the third period Tuesday and topped Boston 5-2. Rob Blake, Milan Michalek, Joe Thornton and Mike Grier also scored for the Sharks, who ended a three-game losing streak. Milan Lucic notched both Boston

Joe Thornton assisted on both San Jose goals Tuesday, helping the Sharks escape with a 2-1 overtime victory over the Vancouver Canucks. With the goalie pulled for an extra attacker, Thornton set up Devin Setoguchi's goal -- his 21st this season -- with 40 seconds left in regulation to send the game into overtime.