A subgroup of air-breathing, terrestrial (land) arthropods, spiders are not actually insects but rather belong to the Class Arachnida (a.k.a. arachnid). Besides spiders, other arachnids include ...

Just like some people, there are arachnids out there that prefer to pick up their takeout meals, including the aptly named slingshot spider (Theridiosoma gemmosum). Scientists have just figured out ...