They'll look less friendly soon

  -- Photo by Joel Sartore/National Geographic Photo Ark     The Bruce Museum, in Greenwich, Conn., is hosting   "National Geographic Photo Ark" through Sept.  2 .  "The National Geographic Photo Ark"   is a multiyear project led by Photo Ark founder and National Geographic photographe r    Sartore. 

-- Photo by Joel Sartore/National Geographic Photo Ark

The Bruce Museum, in Greenwich, Conn., is hosting "National Geographic Photo Ark" through Sept.  2"The National Geographic Photo Ark" is a multiyear project led by Photo Ark founder and National Geographic photographer Sartore.