Jumping Spiders Use Image Defocusing For Depth Perception

A study out in today’s Science Magazine┬áby Takashi Nagata, Mitsumasa Koyanagi, Hisao Tsukamoto, Shinjiro Saeki, Kunio Isono, Yoshinori Shichida, Fumio Tokunaga, Michiyo Kinoshita, Kentaro Arikawa and Akihisa Terakita┬áproposes that jumping spiders at least, use image defocusing to provide depth perception. ┬áJumping spiders (Salticidae) are the largest family of spiders and have perhaps the best visual acuity of the invertebrates.

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