Humans Alter Pig Skull Shapes in a Short Time

Written by Romário Pereira de Carvalho

Published on 18/02/2025 at 07:24

Updated on 18/02/2025 at 07:25

Os dois porcos à esquerda são o Landschwein refinado alemão e o Edelschwein alemão. À direita, há um animal que se parece muito com um porco doméstico original. Crédito: Uni Halle / Markus Scholz

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Study Reveals How Selective Breeding Quickly Altered the Shape of German Domestic Pig Skulls, with Shorter and Flatter Snouts, in Just 100 Years

In just 100 years, the shape of German domestic pig skulls has changed significantly. The transformation, which includes shorter and flatter snouts, reflects the changes introduced by breeding practices in the early 20th century.

A research team from Martin Luther University Halle-Wittenberg (MLU) analyzed skulls of domestic pigs and wild boars and revealed surprising findings about the speed at which humans can shape the evolution of animals.

Changes Caused by Selective Breeding

The alteration of the shape of pig skulls was not a deliberate choice by breeders, but rather a byproduct of intentional changes to the animals’ characteristics.

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Unintentional Change and the Impact of Feeding

In addition to genetic selection for rapid growth characteristics, feeding may have also contributed to the observed changes.

Modern pigs are fed protein-rich diets, which may have influenced the growth of their skulls.

In contrast, wild boars, which continue to have a more varied diet, do not show significant changes in skull shape.

The study’s findings reveal how much power humans have to accelerate the evolution of animals.

Frank Steinheimer, a co-author of the study, emphasizes that the changes that occurred in just 100 years demonstrate that selective breeding can modify animal development much quicker than previously thought, leading to rapid and significant evolutionary changes through artificial selection.

With information from Scitechdaily.

Humans Alter Pig Skull Shapes in a Short Time

Study Reveals How Selective Breeding Quickly Altered the Shape of German Domestic Pig Skulls, with Shorter and Flatter Snouts, in Just 100 Years

Changes Caused by Selective Breeding

Unintentional Change and the Impact of Feeding

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Humans Alter Pig Skull Shapes in a Short Time

Study Reveals How Selective Breeding Quickly Altered the Shape of German Domestic Pig Skulls, with Shorter and Flatter Snouts, in Just 100 Years

Changes Caused by Selective Breeding

Unintentional Change and the Impact of Feeding

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With billions in loans, China is rebuilding Nigeria’s railway network from scratch, abandoning the British colonial tracks that have turned to scrap and creating a corridor of over 1,300 km to take the load off the roads of Africa’s largest economy.

Australia prepares to dredge 96.5 million m³ in Moreton Bay to deepen, widen, and realign channels of the Port of Brisbane, in a project of up to 25 years designed to accommodate larger ships and enhance maritime safety and regional port efficiency.

A robot named Walter does the work of five bricklayers per hour and can save the construction industry, where the average age of professionals is 46 years and almost no one wants to learn the trade anymore, in the United Kingdom.

Cristiano Ronaldo builds a billion-dollar mansion in Portugal with 54,000 square feet, a 3-acre plot facing the Atlantic, private spa, indoor and outdoor pools, and an estimated value of an impressive R$ 385 million.

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