This Bioviva Nature Challenge version introduces the players to bird species, such as the Hyacinth Macaw and the Humboldt Penguin. Each of the 36 cards contains information about the bird displayed, including data on their length, weight, wing span, and life span. Players bet on these characteristics; the player showing the strongest characteristic in the selected category wins the other players’ cards. The first person to collect all of the cards wins the game.
[From the publisher web site and from the cards]