http://www.rpg.net/reviews/archive/13/13668.phtml
Tom Vasel's Summary:
Lascaux is a simple card game that uses a familiar bidding system (especially to No Thanks! fans) to motor a game that plays quickly and is simply enjoyable for up to five players. Using a unique auction system, players attempt to win cards with pictures of different animals to score the most points.
Go to the full review for more information.