{"id":823883,"date":"2026-08-24T05:08:15","date_gmt":"2026-08-24T05:08:15","guid":{"rendered":"https:\/\/www.newsbeep.com\/us\/823883\/"},"modified":"2026-08-24T05:08:15","modified_gmt":"2026-08-24T05:08:15","slug":"mexico-reintroduced-47-bison-in-2025-after-more-than-100-years-just-months-later-the-ecosystem-is-restoring-itself","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/us\/823883\/","title":{"rendered":"Mexico reintroduced 47 bison in 2025 after more than 100 years: Just months later, the ecosystem is restoring itself"},"content":{"rendered":"

In northern Mexico, the reintroduction of dozens of bison in part of the Chihuahuan Desert is positively impacting the surrounding ecosystem in several major ways, says the body that is the driving force behind the initiative.<\/p>\n

Last year, nearly 50 bison were brought into Cuatroci\u00e9negas, a UNESCO-recognized nature reserve in Mexico\u2019s Coahuila state. Renowned for its gypsum dunes and its bright-blue pools of water, the 400,000-hectare habitat is home to several hundred plant and animal species – including multiple flora and fauna that are \u201ccritically vulnerable or endangered\u201d, UNESCO warns<\/a>.<\/p>\n

\u201cA fundamental species that was there before and should be there\u201d<\/p>\n

But the bison\u2019s introduction in Cuatroci\u00e9negas\u2019s El Santuario Reserve, a protected area run by the Fundaci\u00f3n Pro Cuatroci\u00e9negas<\/a>, is helping to \u201creactivate the dynamics and the health of an ecosystem\u201d, says Gerardo Ruiz Smith, the Fundaci\u00f3n\u2019s director. \u201cIt offers you so much hope,\u201d he told the Mexican media outlet Vanguardia<\/a>, to see the impact of \u201csimply bringing back a fundamental species that was there before and should be there\u201d.<\/p>\n

Having been extirpated from the area by human activities in the 19th century, the bovines returned in August 2025, when three bison were introduced in El Santuario, in a collaboration between the Fundaci\u00f3n Pro Cuatroci\u00e9negas and Coahuila\u2019s Museo del Desierto. In November, the Fundaci\u00f3n then announced the introduction of 44 more bison, in a multi-group effort that also involved the Mexican Fund for the Conservation of Nature.<\/p>\n

\u201cAfter [bison] were hunted to the point of extinction in this area around 200 years ago, the return of a key species to the region of Cuatroci\u00e9negas is a historic moment,\u201d Ruiz Smith wrote<\/a> on social media at the time. In a subsequent post, he added<\/a>: \u201cThis event represents much more than the reintroduction of an emblematic animal: the bison is a true ecosystem engineer, capable of regenerating soils, improving water infiltration, reducing wildfire risk and strengthening the biodiversity of the Chihuahuan Desert.\u201d<\/p>\n

\u201cMolding and regenerating\u201d<\/p>\n

Speaking to CNN<\/a>, Ruiz Smith explained that the bison in El Santuario will help to prevent the outbreak and spread of fires by eating dry vegetation. Thanks to the animals\u2019 grazing, blazes will have fewer potential fuel sources. <\/p>\n

Weighing up to around 1,700 pounds, the bovines are also promoting the generation of plant life in the area – thanks, in part, to the impact of their hooves on the surface. By turning up the ground as they run, Ruiz Smith said, they unwittingly till the soil, creating openings that let in water. The upshot: more favorable conditions for flora to grow. <\/p>\n

In addition, bisons act as inadvertent spreaders of plant seeds, Ruiz Smith told Vanguardia. This happens because seeds can become entangled in the animals\u2019 fur, before being shaken loose as the bison move around. <\/p>\n

Ruiz Smith also noted that the bisons\u2019 manure is aiding the fertility of the Cuatroci\u00e9negas soil, by attracting dung beetles. As explained by biology experts<\/a> in the MDPI academic journal, dung beetles improve the nutrient content of soil by burying the excrement they encounter. In addition, their burrowing plays a key role in aerating the subsurface. <\/p>\n<\/p>\n

As the bison promote a healthier landscape in El Santuario, hidden cameras installed in the area have captured the return of previously-absent animals such as pumas, lynxes and the collared peccary, Ruiz Smith revealed to Vanguardia. What\u2019s more, local bird species have been seen using the bison\u2019s fur to build nests. \u201c[Bison] are landscape architects,\u201d Ruiz Smith concluded, telling CNN: \u201cThey set about molding and regenerating their surroundings.\u201d<\/p>\n

Related stories\"\"\"\"<\/p>\n

Get closer to the game! Whether you like your soccer of the European variety or that on this side of the pond, our AS USA app has it all. Dive into live coverage, expert insights, breaking news, exclusive videos, and more. Plus, stay updated on NFL, NBA and all other big sports stories as well as the latest in current affairs and entertainment. Download now for all-access coverage<\/a>, right at your fingertips \u2013 anytime, anywhere.<\/p>\n

And there\u2019s more: check out our TikTok<\/a> and Instagram reels<\/a> for bite-sized visual takes on all the biggest soccer news and insights.<\/p>\n