Multiple realizability: Emergent phenomena can arise through different configurations of parts. For instance, sentience evolved independently in vertebrates, arthropods, and cephalopods, showing how ...
The study of the physiology and ecology of animals that don't have backbones, ranging from worms to sea stars, and of parasites, which can often provide insights into complex ecosystems. (Sea star ...
Holds the title of the largest arthropods on Earth, with lifespans reaching up to 100 years. These species have ten legs and boast a leg span of up to 12 feet and a weight of up to 40 pounds.