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bicyclefrog
— Pig Megafauna
#speculativeevolution
#speculativebiology
#speculativezoology
Published:
2021-12-30 06:29:27 +0000 UTC
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Description
Over a few million years, feral pigs in North America will increase in size and become the continent's most prominent mammal, not only in size but ecological impact as well. To support their weight of a ton or more, these pigs evolved to only be three toed (also known as mule footed, which is a mutation that occurs in pigs today) along with having extremely muscular limbs. Instead of being omnivorous like their ancestors, these pigs have shifted torwards a mostly herbivorous diet, being capable of digesting almost any type of green matter.
As large matriarchal groups called sounders migrate throughout the continent, they knock over small trees and strip large ones too big to knock over of their bark. By doing this they destroy forests and allow grasses and forbs to grow in their place. This is done on such a large scale that forests have become scarce and grasslands became the status quo. Forests only exist in low productivity habitats such as on top of mountains or sandy coastal plains, but some trees have been making a comeback after evolving large spines to deter these pigs.
While they evolved in North America, these pigs would quickly make their way to South America, where they would fit right at home in the expansive savanna that used to be the Amazon rainforest. However, the pigs on both continents did not intermingle much and would soon start to speciate, with the southern ones close to the equator becoming smaller and the ones in Patagonia increasing in size like their cousins up north.
Despite their large size and powerful strength, these pigs were not completely immune to predators. Big cats and canines on both continents will coordinate not only how to abduct the piglets, but also how to displace an adult pig from the rest of the group to gang up on it. There is another predator that betrays this pig as well, which turns out to be another feral pig descendant that took the opposite route.
To parallel their cousin, this other pig evolved in South America to become solitary and mainly carnivorous. These carnivorous pigs utilize brute force against the giant pigs, impaling them repeatedly with their large tusks in order to cause massive blood loss and organ damage. The other pigs have no choice but to abandon the injured cohort, and the pig succumbs at the feet of its distant relative.
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