Researchers: Complex vision evolved independently in vertebrates and arthropods and so the ability to distinguish living from non-living motion using the relative positioning of the joints has most likely arisen convergently in the two groups of animals.
Tag: jumping spiders
If spiders are as intelligent as many vertebrates …
… and it appears that they are, what is the role of the brain in mediating intelligence? Spiders have rather different brains from vertebrates; much simpler, for one thing: Ronald R. Hoy, Cornell University professor of neurobiology and behavior, considers the spider “one of the smartest of all invertebrates.” But while its behavior is comparable Read More…