The number of eggs a bird lays — its clutch size — varies greatly among species. You might think every species should simply lay lots of eggs because that would increase the odds of more young birds ...

If you were a small-to-medium-sized creature during the ancient Jurassic or Cretaceous periods, you definitely wouldn’t have wanted the shadow of a pterosaur to appear on the ground beneath you. With ...

The eggs of a bald eagle couple in San Bernardino National Forest have been eaten by ravens, according to the Friends of Big Bear Valley. Jackie and Shadow — for whom thousands of people were rooting ...

This is a preview. Log in through your library . Abstract 1. Large clutch size is unambiguously an ancestral state in reptiles. However, females of several lizard lineages lay just one or two eggs per ...

Bald eagles Jackie and Shadow have for years been the stars of a reality show set in a soaring pine-tree penthouse above Big Bear Lake. Yet it came as an unexpected surprise this week when devoted ...