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 ...

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 ...

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 ...

A behind the scenes look at carefully setting up a fresh clutch of eggs to give them the best chance to hatch successfully ...

Scientists in China uncover crystal-filled dinosaur eggs, revealing a glittering twist in prehistoric life and evolution.

This is a preview. Log in through your library . Abstract 1. Life-history theory often assumes that energy and nutrient contents are correlated with egg size. I assessed the within- and among-clutch ...

Imagine going scuba diving on a beautiful day, drifting through the calm, blue waters when all of a sudden you come across an enormous, gooey ball. That’s what happened to a group of divers off the ...