Humans’ influence on the planet has led to numerous adaptations in plants and animals worldwide. Researchers have identified several fascinating examples of species evolving to cope with human-dominated environments.
In the 21st century, scientists have observed remarkable changes in various species. One notable example is the mahogany tree, which once grew up to 20 meters tall but now exists as smaller, shrubby trees due to over-harvesting. The loss of large trees has reduced their ability to reproduce and share genetic diversity.
In another phenomenon, magpies are using artificial materials like anti-bird spikes in their nests instead of traditional twigs from thorny bushes. Meanwhile, brittle stars have been spotted thriving on discarded beer bottles at depths of 300 meters off the coast of Curaçao. These creatures prefer living on human-made detritus.
Urban snails have also undergone a change, developing paler shells to cope with warmer city temperatures. This adaptation helps them stay cool and avoid overheating in dark shells. In contrast, cliff swallows have evolved shorter wings to evade cars that pose a threat to their survival.
The loss of tusks among elephants is another consequence of human pressure. In Gorongosa national park, poaching led to a significant decline in elephant numbers, but conservation efforts have helped restore populations with reduced tusk sizes.
These examples demonstrate the complex and often surprising ways species are adapting to human influence.
Source: https://www.theguardian.com/environment/2025/jan/06/evolution-species-adapt-response-humanity-tuskless-elephants-natural-world-wildlife-aoe