Spiders Jump with Deadly Accuracy in Green Light | National Geographic

we’ve long known that many insects have

we’ve long known that many insects have specialized eye capabilities but

specialized eye capabilities but

specialized eye capabilities but Japanese researchers have now concluded

Japanese researchers have now concluded

Japanese researchers have now concluded that jumping spiders have a unique

that jumping spiders have a unique

that jumping spiders have a unique vision attribute jumping spiders are

vision attribute jumping spiders are

vision attribute jumping spiders are able to stalk and rapidly pounce on

able to stalk and rapidly pounce on

able to stalk and rapidly pounce on their prey to do this they must gauge

their prey to do this they must gauge

their prey to do this they must gauge the distance that prey is from them most

the distance that prey is from them most

the distance that prey is from them most animals gauge distance either by

animals gauge distance either by

animals gauge distance either by adjusting focal length of the lens’s as

adjusting focal length of the lens’s as

adjusting focal length of the lens’s as humans do or moving their heads for an

humans do or moving their heads for an

humans do or moving their heads for an effect known as motion parallax the new

effect known as motion parallax the new

effect known as motion parallax the new finding suggests jumping spiders have a

finding suggests jumping spiders have a

finding suggests jumping spiders have a third option called image D focus the

third option called image D focus the

third option called image D focus the researchers headed by Takashi Nagata

researchers headed by Takashi Nagata

researchers headed by Takashi Nagata proved their theory by testing jumping

proved their theory by testing jumping

proved their theory by testing jumping spiders with only green light in which

spiders with only green light in which

spiders with only green light in which they successfully pounced on their prey

they successfully pounced on their prey

they successfully pounced on their prey but when only under red light the

but when only under red light the

but when only under red light the spiders came up short in analyzing the

spiders came up short in analyzing the

spiders came up short in analyzing the jumping spiders several layers in the

jumping spiders several layers in the

jumping spiders several layers in the retina of its primary eye one of the

retina of its primary eye one of the

retina of its primary eye one of the layers contained a green sensitive

layers contained a green sensitive

layers contained a green sensitive pigment despite the fact that this layer

pigment despite the fact that this layer

pigment despite the fact that this layer does not focus green light the

does not focus green light the

does not focus green light the researchers say because of chromatic

researchers say because of chromatic

researchers say because of chromatic aberration of the lens the D focus is

aberration of the lens the D focus is

aberration of the lens the D focus is larger under red light and under red

larger under red light and under red

larger under red light and under red light the spiders incorrectly gauge the

light the spiders incorrectly gauge the

light the spiders incorrectly gauge the distance to the smaller insect until now

distance to the smaller insect until now

distance to the smaller insect until now no animals were known to use image D

no animals were known to use image D

no animals were known to use image D focus to determine the distance of an

focus to determine the distance of an

focus to determine the distance of an object think of photos that are blurry

object think of photos that are blurry

object think of photos that are blurry in the foreground but clear in the

in the foreground but clear in the

in the foreground but clear in the background you can imagine how image D

background you can imagine how image D

background you can imagine how image D focus works the study findings were

focus works the study findings were

focus works the study findings were published in the triple-a s journal

published in the triple-a s journal

published in the triple-a s journal Science

Science

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