Behold the Arthropods. They are invertebrates with exoskeletons, segmented bodies and jointed appendages (examples: insects, arachnids, crustaceans). Exquisitely versatile and adaptable, they comprise the most species-rich phylum and they’ve been around since at least the early Cambrian Period (541-485.4 million years ago, (Mya)). Look where you’re standing. Chances are that an athropod’s already been there […]