The estimate of 5.5 million species of insects is interesting. What’s even more remarkable is that because scientists have found only about 1 million species, that means more than 4.5 million species ...

But unlike other arthropods—like lobsters, spiders, or millipedes—insects have three pairs of jointed legs, segmented bodies, an exoskeleton, one pair of antennae, and (usually) one or two ...

A handful of new studies moves the needle toward a consensus on the long-disputed question of whether insect wings evolved from legs or from the body wall, but the devil is in the details. Jef Akst ...

A spider has four pairs of legs, eight eyes and unsegmented abdomens. If you find wings or antennae on a crawler, what you ...