Lying at the heart of the vast, untrammeled Reserva de la Biosfera Calakmul (which covers close to 15% of the state’s total territory), the ruins are surrounded by rainforest, with cedar, mahogany and rubber trees dotting a seemingly endless canopy of vegetation. While wandering amid the ruins, you might glimpse ocellated turkeys, parrots and toucans among the over 350 bird species that reside or fly through here.
It's also possible to see or hear spider and howler monkeys, but much less likely to spot a jaguar – one of five kinds of wildcat in the area. There are also many other mammal, reptile and amphibian species that call this biosphere home. Animals are most active during the mornings and evenings.
