The hidden ways insects support animal life—from habitat to health—go way beyond being food

Insects contribute to ecosystems in diverse ways beyond being food sources. These tiny creatures, estimated to number at least 14 million species, play crucial roles in sustaining the natural world. They provide essential ecosystem services such as pollination and decomposition, which are vital for plant growth and waste management.

Insects serve as ecosystem engineers, creating and maintaining habitats for other species. Termites and ants build extensive underground structures that serve as safe nesting sites for reptiles, parrots, and other creatures. The soil surrounding termite mounds offers optimal conditions for burrowing species like naked mole rats and aardvarks. Moreover, ant nests enrich the surrounding soil with nutrients, providing a nutritious grazing area for herbivores such as gazelles.

Insects also act as protectors for various species. Some vertebrates rely on insects for defense against predators. For example, horned lizards use chemicals from ants to create a toxic, blood-spurting defense mechanism against predators like big cats. Similarly, some birds and snakes store toxins from ants and beetles to deter potential threats. In some cases, vertebrates even mimic insects to avoid being eaten, such as young songbirds in the Amazon that mimic caterpillars when confronted by predators.

Overall, insects are integral to the health and well-being of vertebrates, providing habitat, protection, and overall ecosystem stability. Their role extends far beyond serving as a food source, highlighting the intricate interconnectedness of life in the natural world.