About Invertebrates
Invertebrates are, simply put, animals without spines (aka backbones). While this may seem to be only a few types at first glance, it’s actually surprising that over 90% of the total different species of animals in the world are invertebrates. While a majority of the well known and most common species of animals on the planet have backbones, like mammals, birds, and reptiles, quite a few other life forms are born without spines, and have alternative means of sending their neutral signals or physically giving their internal organs a framework.
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Topic: General Pet Info and Care