
Top: More members of a deadly Deinonychus hunting party converge on the herbivore dinosaur Tenontosaurus as it bellows in defiance toward a pair of pack leaders.
Bottom: Giganotosaurus, South America's bigger cousin to Tyrannosaurus rex, catches the scent of a dead titanosaur while patrolling in an araucarian[monkey puzzles] forest
[Lerner Books 2004-5]