Jumping spiders are vital for agriculture pest control, and 61 species can even learn to distinguish the color red in their prey(猎物), a 2015 study 62 (show). They are able to learn to associate this color 63 poisonous prey and avoid it or find out high quality prey.
Jumping spiders will consume almost any small pests, 64 (range) from caterpillars to flies. Not only does this 65 (natural) reduce the amount of agricultural damage from insect pests, but it means farmers can avoid using chemical treatments 66 (protect) their crops.
In total, a large number of jumping spiders, over 5,000 species, 67 (find) on every continent except Antarctica by now. Being able to adapt to the environment is a key evolutionary skill. Since the spiders are able to distinguish 68 foods are nutritious, from those that are 69 (harm), they can stay alive longer and manage a wide 70 (various) of pests.