Murre eggs are quite pointy L. Brian Stauffer New research reveals why birds that nest on cliff sides have evolved to lay pointy eggs: the eggs are less likely to roll off and fall.

How the egg rolls: a morphological analysis of avian egg shape in the context of displacement dynamics. The Journal of Experimental Biology , 2018; jeb.178988 DOI: 10.1242/jeb.178988 Cite This Page : ...

Q. I saw a photo of different kinds of bird eggs and noted not only the obvious, that smaller birds lay smaller eggs, but also that some bird eggs are ...

Natural selection -- that merciless weeder-outer of biological designs that are out of step with the times -- also is a wily shaper of traits. Exhibit A is the pointy murre egg, according to new ...

2. Kiwis lay the biggest eggs in relation to body size of any bird—each egg is around 20 percent of the mother’s total body weight. It takes a female kiwi a month to produce a single egg, and ...

The common murre (Uria aalge), which was a source of eggs for San Francisco's egg rush. Engraving by John Gould, William Hart, H. C. Richter. "Scottie the egger" wearing a shirt typical of egg ...

Early numbers estimated the die-off to be between 500,000 and 1 million birds. Heather Renner, Alaska Maritime National Wildlife Refuge supervisory biologist, published research in December that ...

A common murre census plot at the Semidi Islands, Alaska, before the 2014–2016 Northeast Pacific marine heat wave had 1,890 birds (left). In 2021, the plot had 1,011 birds. Brie Drummond/USFWS ...

Q. I saw a photo of different kinds of bird eggs and noted not only the obvious, that smaller birds lay smaller eggs, but also that some bird eggs are elongate, whereas others are more rounded.

Q. I saw a photo of different kinds of bird eggs and noted not only the obvious, that smaller birds lay smaller eggs, but also that some bird eggs are elongate, whereas others are more rounded.