What shape is a bird egg?
Zoologists can list several egg shapes, usually 6 or 8 different shapes.
Here are 6 different bird egg shapes: (1) conical, (2) pyriform (pointy or pear-shaped), (3) longitudinal, (4) spherical (round, ball-shaped), (5) oval, and (6) elliptical.
Some zoologists add the cylindrical shape and the biconical shape.
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The Crimean Snail (Helix taurica) is a spiral-shaped invertebrate gastropod mollusc. An invertebrate does not have a backbone and gastropod means stomach-footed. It is also called the Roman Snail, the Edible Snail, or the Vineyard Snail.
The Crimean Snail has a thick, spherical shell with a distinct apex. The shell has a white background with dark-brown to reddish-brown, irregular, vertical bands.
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Eggs can be big or small, round or pointy.
There are many explanations for the variety of birds’ egg shapes.
Mary Caswell Stoddard and her researchers of Princeton University analysed the shape almost 50,000 eggs from around 1,400 species of birds in museum collections. She thinks the shape of a female bird’s wing determines the shape of the eggs.
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