Les grâces naturelles, an extremely rare painting by surrealist master René Magritte is expected to fetch up to €10 million when it goes up for auction for the first time in March at Christie's.

The Araripe Manakin (Antilophia bokermanni) is one of the rarest birds in the world, found only in a tiny forested valley in Brazil at the base of the Araripe Plateau. This critically endangered ...