Unseen City

Ginkgo Trees

Ginkgo trees, with their tough, leathery leaves, have a remarkable ability to thrive in urban environments despite their ancient lineage. Nathaniel Johnson explains that these trees have survived for millions of years, adapting to polluted air and concrete, making them ideal for city life 1. Interestingly, ginkgos were once widespread during the Cretaceous period but now rely on human intervention to flourish in cities 2.

They can thrive in polluted air, they do well in concrete, they do well in partial light, which is perfect for cities.

--- Nathaniel Johnson

Despite their resilience, the ginkgo's seeds emit a strong odor, leading to the preference for planting male trees in urban areas 1.

   

Crows Adaptation

Crows have ingeniously adapted to urban environments, utilizing human-made features like streetlights to their advantage. Nathaniel Johnson notes that streetlights help crows avoid predators like great horned owls, which has led to a concentration of crows in cities 3. This adaptation highlights the complex relationship between urban wildlife and human infrastructure.

If you have streetlights, you can see them coming. And so that may be why crows are moving into cities.

--- Nathaniel Johnson

Roman Mars adds that understanding these stories can transform our perception of urban nature, turning nuisances into fascinating subjects 3.

   

Pigeon Evolution

Pigeons, once symbols of aristocracy, have become ubiquitous in urban landscapes, leading to a complex relationship with humans. Nathaniel Johnson describes how pigeons were initially associated with the upper class but lost their status as they became more common 4. Despite efforts to control their population, pigeons continue to thrive in cities, adapting to various deterrents 5.

You can't really maintain your status as a symbol of the aristocracy if you're an incredibly common thing.

--- Nathaniel Johnson

The mystery of pigeons' damaged feet is explored, revealing that common urban materials like thread and hair can cause injuries, showcasing the unintended consequences of city life 5.