>

Invertebrates: The Majority of Animal Species

Understanding the World of Animals Without Backbones

90% of Animal Species Lack Backbones

In a captivating discovery, researchers have unveiled that a vast majority of animal species on Earth lack backbones. These animals, known as invertebrates, constitute an estimated 90% or more of the planet's 15-30 million animal species.

Invertebrates encompass a diverse range of creatures, including insects, earthworms, jellyfish, and countless others. Their absence of a backbone, or vertebral column, distinguishes them from vertebrates, such as mammals, birds, reptiles, amphibians, and fish.

Despite their lack of backbones, invertebrates exhibit remarkable adaptations and play vital roles in ecosystems worldwide. Insects, for example, pollinate plants and control pest populations. Earthworms enhance soil fertility, while jellyfish contribute to marine food chains. The study of invertebrates provides valuable insights into the intricate balance of life on Earth.