The river and rain forest boast a teeming multitude of species, which make their homes everywhere from the canopy to the depths of the water. Animals live and feed in every layer of the forest, from the tops of the tallest emergent trees to the ferns, leaves, and roots reaching deep into the soil. And certain plants are just as active at hunting prey as predatory animals are.
Bats are common sights in rocky caves and jungle trees. They are considered enemies of the sun and closely associated with demons, even though most varieties are harmless. Giant bats are a more significant threat.
A wide variety of native birds are found throughout Ixalan, singing complex songs that contribute to the chorus of sounds within the jungle. Hummingbirds are sometimes poetically described as embodiments of freedom and the pursuit of pleasure. Large macaws and parrots (with statistics like those of ravens) make their homes in the trees and can often be found gathering over clay licks along riverbeds and the sea coast. The wily birds enjoy toying with people from the trees, with many of them calling out in imitation of humanoid voices to lead pirates and other explorers astray.
Frogs are more commonly heard than seen in Ixalan, joining their voices to the vivid soundscape of the jungle. They range from tiny poisonous tree frogs found in the branches of tall trees to huge horned frogs (giant frogs) that lurk in marshy areas.
Colorful griffins (griffons) combine the heads and plumage of jungle parrots with the sleek bodies of jaguars. They are intelligent and noble, and they share the River Heralds’ desire to ensure that the power of the Immortal Sun is never again unleashed on the world.
The forest teems with all manner of insects, spiders, and other arthropods. Mosquitoes breed in stagnant water and swarm around any animal with blood. Centipedes, millipedes, roaches, and beetles crawl through the detritus and humus on the forest floor. Wasps, dragonflies, scorpions, ants, and beetles are everywhere, ranging in size from diminutive to gigantic. Swarms of insects pose a significant threat to adventurers, as do giant centipedes, giant fire beetles, giant spiders, giant wasps, and giant wolf spiders.
Many predatory plants attract food by producing smells redolent of food—whether the odor of sweet nectar or the stench of decaying meat. They then close jawlike leaves around their prey or capture them in sticky pools of digestive juice. A few plants are even more active, lunging up from the forest canopy to grab flying dinosaurs in woody claws or tangle them in vines. Others pull up their roots and creep across the forest floor in search of good hunting grounds. Awakened shrubs, awakened trees, and various forms of fungi can represent many of these plants.