Invertebrates are animals that lack a spine, or a backbone. Invertebrates make up 97% of all known animal species, making them much more abundant than vertebrates (animals with a backbone-like humans!). They are found in virtually every habitat and can survive extreme conditions. They can be found in arctic or tropical areas, can live high up in mountains or at the bottom of the sea, and can live in humid rainforests or dry deserts. Though all lack a backbone, invertebrates are extremely diverse. This website will expose you to the fascinating world of invertebrate diversity!