Mark Moffett / Spider (Achaearanea camura) from nearby web, startled by JumpingSpider's (Portia fimbriata) movements, covers Portia in sticky silk, and the predator becomes the prey, Queensland, Australia

Mark Moffett / Jumping Spider (Portia fimbriata) females fighting over eggs and nest, such battles often result in maiming or death, Queensland, Australia

Mark Moffett / Jumping Spider (Portia fimbriata) avoids huge female Giant Wood Spider (Nephila maculata) and stalks tiny male on same web, Queensland, Australia

Mark Moffett / Jumping Spider (Euryattus sp) female lured from nest by Jumping Spider (Portia fimbriata) mimicking mating leaf-rocking of male Spider (Euryattus sp), Queensland, Australia

Mark Moffett / Researcher Stim Wilcox recording spider webs vibrations which Jumping Spider (Portia fimbriata) can imitate, Queensland, Australia

Mark Moffett / Jumping Spider (Portia fimbriata) hunting behavior imitated by magnet by vibrating spider web, part of Stim Wilcox's research, Queensland, Australia

Mark Moffett / Jumping Spider (Portia fimbriata) plucking web of another spider, imitating the vibrations made by a mosquito to lure the resident spider out with intent to kill, Queensland, Australia