Scientists have identified two previously unknown crocodile species off the coast of the Yucatán in a recent study. These new species are exclusive to Cozumel and Banco Chinchorro, two islands in the region. Despite their small but stable populations, these crocodiles are facing threats from habitat destruction. The discovery of these crocs brings the total number of known New World crocodile species to six. The research team from Canada, Mexico, and Panama detailed their findings in a new article published in the journal Molecular Phylogenetics and Evolution. The lead author of the study, José Avila-Cervantes, expressed surprise at the unexpected discovery. These new species, genetically distinct from other New World crocodiles, are yet to be formally named. With each population estimated to have fewer than 1,000 breeding individuals, conservation efforts are deemed crucial for their survival. McGill biologist Hans Larsson emphasized the importance of protecting the habitats of these newly discovered crocodiles to ensure their continued existence.
Both Cozumel and Banco Chinchorro islands are popular tourist destinations, with Cozumel welcoming over 1.5 million cruise ship visitors in the first quarter of 2025. This influx of tourists is impacting the local ecosystem, including endemic species like crocodiles and the coral reef system. To ensure the survival of these crocodiles and other species, it is crucial for the island communities to recognize their importance to the ecosystem that attracts millions of visitors to these islands.